Ecosyste.ms: Packages

An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

npmjs.org "chords" keyword

Top 6.5% on npmjs.org
note-transposer 1.0.4
Music transposition made easy
2 versions - Latest release: over 8 years ago - 11 dependent packages - 8 dependent repositories - 21 downloads last month - 3,714 stars on GitHub - 1 maintainer
onsong 0.0.1
A JavaScript library for parsing and formatting chord sheets in the OnSong File Format.
1 version - Latest release: almost 2 years ago - 1 dependent package - 1 dependent repositories - 14 downloads last month - 4 stars on GitHub - 1 maintainer
chord-chart-wasm 0.3.0
Chord chart validation and transposition
4 versions - Latest release: over 1 year ago - 1 dependent package - 10 downloads last month - 0 stars on GitHub - 1 maintainer
Top 1.7% on npmjs.org
tonal 6.0.1
tonaljs music theory library
86 versions - Latest release: 28 days ago - 74 dependent packages - 259 dependent repositories - 3.65 thousand downloads last month - 3,712 stars on GitHub - 1 maintainer
Top 6.0% on npmjs.org
midi-note 1.0.0
Midi to note name conversion
1 version - Latest release: over 8 years ago - 5 dependent packages - 6 dependent repositories - 42 downloads last month - 3,712 stars on GitHub - 1 maintainer
@_000407/transpose.js 1.0.3 removed
This is a simple utility for transposing the chords in a given composition. Once the CSS selector...
3 versions - Latest release: 7 months ago - 1 dependent package - 25 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.8% on npmjs.org
tonal-key 2.2.2
Conversion between key numbers and note names
42 versions - Latest release: about 5 years ago - 3 dependent packages - 239 dependent repositories - 1.42 thousand downloads last month - 3,638 stars on GitHub - 1 maintainer
react-chord-svg 1.4.2
React component to generate chord diagram SVGs
39 versions - Latest release: over 1 year ago - 1 dependent package - 12 downloads last month - 2 stars on GitHub - 1 maintainer
Top 4.0% on npmjs.org
chordsheetjs 9.0.3 💰
A JavaScript library for parsing and formatting chord sheets
103 versions - Latest release: 1 day ago - 3 dependent packages - 32 dependent repositories - 1.29 thousand downloads last month - 279 stars on GitHub - 1 maintainer
jazzband 0.10.2
A Virtual Jazz Band that plays chords with the Web Audio API.
24 versions - Latest release: about 5 years ago - 1 dependent package - 1 dependent repositories - 28 downloads last month - 28 stars on GitHub - 1 maintainer
ireal-renderer 1.1.0
An HTML5/ES6 based renderer for iReal Pro playlists
5 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 23 downloads last month - 18 stars on GitHub - 1 maintainer
momo-chords 0.4.3
Chord parser and printer
18 versions - Latest release: over 5 years ago - 1 dependent package - 2 dependent repositories - 20 downloads last month - 9 stars on GitHub - 1 maintainer
Top 1.8% on npmjs.org
@tonaljs/chord 6.0.0
Musical chords and its relations
48 versions - Latest release: 3 months ago - 11 dependent packages - 184 dependent repositories - 3.42 thousand downloads last month - 1 maintainer
Top 1.9% on npmjs.org
@tonaljs/chord-type 5.0.5
A dictionary of musical chords
28 versions - Latest release: 3 months ago - 9 dependent packages - 170 dependent repositories - 4.18 thousand downloads last month - 1 maintainer
fretboard-cli 1.0.5
Display fretboards with hightlight notes of specific scale or chords in your terminal.
5 versions - Latest release: almost 2 years ago - 1 dependent package - 13 downloads last month - 0 stars on GitHub - 1 maintainer
chord-voicings 0.0.1
Find musical chord voicings and transitions
1 version - Latest release: about 2 years ago - 3 dependent packages - 2 dependent repositories - 98 downloads last month - 6 stars on GitHub - 1 maintainer
chordy-svg 1.2.1
Guitar Chord SVG Diagram Generator
12 versions - Latest release: almost 4 years ago - 1 dependent package - 2 dependent repositories - 27 downloads last month - 23 stars on GitHub - 1 maintainer
music-builder 1.2.5
The Music Builder provides the notes needed for a chord or scale.
24 versions - Latest release: over 2 years ago - 2 dependent packages - 64 downloads last month - 10 stars on GitHub - 1 maintainer
Top 9.6% on npmjs.org
piu 1.0.0
Infer/Recognize chords from collections of notes
7 versions - Latest release: almost 10 years ago - 2 dependent packages - 7 dependent repositories - 24 downloads last month - 40 stars on GitHub - 1 maintainer
react-guitar-fretter 1.1.2 💰
Todo.
1 version - Latest release: about 2 months ago - 22 downloads last month - 618 stars on GitHub - 1 maintainer
react-ukelele 0.4.6
Small add-on to add svg ukelele chords into your app
12 versions - Latest release: 10 months ago - 2 dependent packages - 30 downloads last month - 1 stars on GitHub - 1 maintainer
@ukegeeks/ace-chordpro-extension 0.0.3-alpha
ChordPro song editing extension for Ace Editor
4 versions - Latest release: 8 months ago - 9 downloads last month - 1 stars on GitHub - 2 maintainers
mustemi 1.0.5
Music theory for MIDI applications
5 versions - Latest release: about 3 years ago - 2 dependent packages - 23 downloads last month - 3 stars on GitHub - 1 maintainer
chords-scales 1.0.4
Get yourself some npm publishnotes
5 versions - Latest release: 8 months ago - 1 dependent package - 1 dependent repositories - 13 downloads last month - 0 stars on GitHub - 1 maintainer
harmonics 1.1.0
Tools and utilities for a generic representation of scales, chords, progressions etc. for use in ...
10 versions - Latest release: over 2 years ago - 2 dependent packages - 11 dependent repositories - 111 downloads last month - 14 stars on GitHub - 1 maintainer
Top 3.4% on npmjs.org
scribbletune 5.0.2
Create music with JavaScript and Node.js!
131 versions - Latest release: over 1 year ago - 8 dependent packages - 44 dependent repositories - 731 downloads last month - 3,678 stars on GitHub - 1 maintainer
pocojs 0.5.5
Reverse music chord lookup at lightning speed
7 versions - Latest release: over 8 years ago - 1 dependent package - 1 dependent repositories - 15 downloads last month - 0 stars on GitHub - 1 maintainer
pianissimo 2.1.0
Helpers for notes, intervals, chords and scales building
6 versions - Latest release: over 3 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 13 stars on GitHub - 1 maintainer
Top 7.5% on npmjs.org
tonal-progression 0.69.9
Create chord progression
21 versions - Latest release: almost 7 years ago - 2 dependent packages - 9 dependent repositories - 85 downloads last month - 3,712 stars on GitHub - 1 maintainer
react-guitar-chord 1.1.0
React component to draw SVG Guitar chords
3 versions - Latest release: over 6 years ago - 3 dependent packages - 7 dependent repositories - 17 downloads last month - 12 stars on GitHub - 1 maintainer
Top 5.2% on npmjs.org
tonal-freq 0.69.9
Conversion between frequencies and note names
20 versions - Latest release: almost 7 years ago - 3 dependent packages - 15 dependent repositories - 86 downloads last month - 3,710 stars on GitHub - 1 maintainer
rhythmically 0.2.1
Create musical sequences easily
2 versions - Latest release: almost 9 years ago - 1 dependent repositories - 10 downloads last month - 1 stars on GitHub - 1 maintainer
chord-parser 0.1.1
Parse guitar chords contained within a string of tablature
1 version - Latest release: over 9 years ago - 1 dependent package - 1 dependent repositories - 46 downloads last month - 11 stars on GitHub - 1 maintainer
@magicdidac/chord-display 1.1.3
Package to display guitar chords on react
4 versions - Latest release: 9 months ago - 5 downloads last month - 0 stars on GitHub - 1 maintainer
chord-mark-converters 0.16.2
Convert from and to ChordMark charts
26 versions - Latest release: 4 months ago - 1 dependent package - 1 dependent repositories - 59 downloads last month - 41 stars on GitHub - 1 maintainer
chord-mark-themes 0.16.2
Themes for ChordMark
23 versions - Latest release: 4 months ago - 1 dependent package - 1 dependent repositories - 44 downloads last month - 41 stars on GitHub - 1 maintainer
Top 8.9% on npmjs.org
chord-mark 0.16.2
ChordMark - chord charts parser and renderer
38 versions - Latest release: 4 months ago - 3 dependent packages - 1 dependent repositories - 53 downloads last month - 41 stars on GitHub - 1 maintainer
interval-density 1.0.2
Perform interval analysis of a collection of notes
3 versions - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 3,710 stars on GitHub - 1 maintainer
@joshuawilliams/interval 1.0.4
Find any music interval. Enter the note, the interval, and can specify if you want a downward int...
5 versions - Latest release: over 3 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
teoria-chord-progression 1.0.0
Diatonic chord progressions for Teoria.js
5 versions - Latest release: about 9 years ago - 5 dependent repositories - 21 downloads last month - 16 stars on GitHub - 1 maintainer
Top 7.4% on npmjs.org
chord-dictionary 1.0.0
A music chord dictionary
3 versions - Latest release: about 8 years ago - 4 dependent packages - 1 dependent repositories - 18 downloads last month - 3,710 stars on GitHub - 1 maintainer
chord-type 0.1.0
Get the type of a chord
1 version - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 3,710 stars on GitHub - 1 maintainer
bach-cljs 1.0.6
Semantic music notation
8 versions - Latest release: about 3 years ago - 1 dependent package - 3 dependent repositories - 22 downloads last month - 7 stars on GitHub - 1 maintainer
Top 6.6% on npmjs.org
sharp11 2.0.2
Music theory multitool with a jazz focus
10 versions - Latest release: over 6 years ago - 7 dependent packages - 18 dependent repositories - 53 downloads last month - 330 stars on GitHub - 1 maintainer
interval-simplify 1.0.1
Simplify musical intervals
2 versions - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 9 downloads last month - 3,710 stars on GitHub - 1 maintainer
chordictionary 0.1.0-beta.4
A Javascript library for dynamic chord recognition, generation and graphic representation for any...
4 versions - Latest release: over 4 years ago - 1 dependent package - 2 dependent repositories - 38 downloads last month - 114 stars on GitHub - 1 maintainer
guitarparty-client 1.0.2
GuitarParty.com Client Library
3 versions - Latest release: over 4 years ago - 1 dependent package - 10 downloads last month - 0 stars on GitHub - 1 maintainer
chordsong 1.1.0
ChordSong is a simple text format for the notation of lyrics with guitar chords, and an applicati...
5 versions - Latest release: 11 months ago - 2 dependent packages - 1 dependent repositories - 196 downloads last month - 1 maintainer
Top 9.2% on npmjs.org
array-notation 1.2.0
Convert music elements to array notation
4 versions - Latest release: over 8 years ago - 7 dependent packages - 1 dependent repositories - 16 downloads last month - 3,706 stars on GitHub - 1 maintainer
scorejs 0.10.0
Create and manipulate musical scores with javascript
5 versions - Latest release: about 8 years ago - 1 dependent repositories - 141 downloads last month - 35 stars on GitHub - 1 maintainer
chord-blueprint-parser 0.0.1
A markdown parser that implements chord-blueprint based on marked
1 version - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 14 downloads last month - 1 maintainer
js2p 0.7.870
To see a better formatted, more frequently updated version of this, please visit [docs.p2p.today]...
6 versions - Latest release: about 7 years ago - 1 dependent package - 1 dependent repositories - 9 downloads last month - 73 stars on GitHub - 1 maintainer
chord-highlighter 1.0.3
Syntax highligter for songs song lyrics with chords
4 versions - Latest release: about 6 years ago - 1 dependent package - 1 dependent repositories - 11 downloads last month - 1 maintainer
chromatone-theory 1.3.7
Music theory needed to create chromatone empowered apps
14 versions - Latest release: over 2 years ago - 1 dependent package - 33 downloads last month - 0 stars on GitHub - 1 maintainer
ireal-reader 1.3.1
Read iReal Pro files into JS
9 versions - Latest release: about 1 year ago - 2 dependent packages - 4 dependent repositories - 14 downloads last month - 32 stars on GitHub - 1 maintainer
violin-chords 0.0.3
Shapes of violin chords.
3 versions - Latest release: over 4 years ago - 1 dependent repositories - 8 downloads last month - 1 maintainer
guitar-chords-js 1.0.0
Insert quick guitar chords cheat sheets on your web site using Canvas with JQuery.
1 version - Latest release: about 3 years ago - 1 dependent package - 9 downloads last month - 1 stars on GitHub - 1 maintainer
Top 5.2% on npmjs.org
vexchords 1.2.0 💰
Javascript Chord Charts
3 versions - Latest release: about 5 years ago - 3 dependent packages - 26 dependent repositories - 514 downloads last month - 834 stars on GitHub - 1 maintainer
@neumie/vexchords 1.2.26 💰
Javascript Chord Charts
27 versions - Latest release: over 1 year ago - 1 dependent repositories - 18 downloads last month - 834 stars on GitHub - 1 maintainer
Top 4.7% on npmjs.org
tonal-range 2.2.2
Create ranges of notes
37 versions - Latest release: about 5 years ago - 6 dependent packages - 17 dependent repositories - 101 downloads last month - 3,695 stars on GitHub - 1 maintainer
use-chromatone 2.5.0 💰
[![](https://chromatone.center/media/logo/logo.svg)](https://chromatone.center/)
26 versions - Latest release: 27 days ago - 1 dependent package - 1 dependent repositories - 78 downloads last month - 70 stars on GitHub - 1 maintainer
chromatone.center 1.9.1 💰
[![](https://chromatone.center/media/logo/logo.svg)](https://chromatone.center/)
4 versions - Latest release: over 1 year ago - 1 dependent package - 2 downloads last month - 70 stars on GitHub - 1 maintainer
kordweb-thin 0.5.20 💰
A tool to easily explore music theory principles.
1 version - Latest release: about 1 year ago - 3 downloads last month - 200 stars on GitHub - 1 maintainer
kordweb 0.7.1 💰
A tool to easily explore music theory principles.
19 versions - Latest release: 5 months ago - 8 downloads last month - 200 stars on GitHub - 1 maintainer
@ftes/chordsheetjs 2.9.7 💰
A JavaScript library for parsing and formatting chord sheets
7 versions - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 279 stars on GitHub - 1 maintainer
@jasonfleischer/music-model-kit 1.0.15
Modelling for music objects such as notes, chords, scales and intervals
16 versions - Latest release: almost 2 years ago - 3 dependent packages - 4 dependent repositories - 9 downloads last month - 0 stars on GitHub - 1 maintainer
@wwest4/chordy-boy 0.2.1
guitar chord diagrams and sounds
3 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 1 maintainer
divide-up-circle-in-circular-segments 1.0.5
Divide a circle into circular segments whose area is proportional to the data
6 versions - Latest release: over 3 years ago - 2 dependent packages - 1 dependent repositories - 17 downloads last month - 7 stars on GitHub - 1 maintainer
rad.js 1.0.12
## :tophat: Get any chord/scale/scaleChords you want. ### More info in https://moayuisuda.github....
7 versions - Latest release: about 1 month ago - 2 dependent packages - 68 downloads last month - 1 stars on GitHub - 1 maintainer
chord-progression 0.1.1
Chord progressions
1 version - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 11 downloads last month - 2,747 stars on GitHub - 1 maintainer
musicociel 0.0.0-alpha.0
Web application to display and edit songs with lyrics and chords.
1 version - Latest release: almost 3 years ago - 2 dependent packages - 1 dependent repositories - 6 downloads last month - 5 stars on GitHub - 1 maintainer
@chordbook/editor 0.0.7
The ChordPro editor used by ChordBook.app
6 versions - Latest release: about 2 months ago - 40 downloads last month - 2 stars on GitHub - 1 maintainer
every-chord-transposer 1.0.1
A module for transposing musical chords
2 versions - Latest release: 4 months ago - 9 downloads last month - 1 maintainer
Top 9.7% on npmjs.org
note-midi 1.0.2
Note name to midi conversion
3 versions - Latest release: over 8 years ago - 6 dependent packages - 4 dependent repositories - 7 downloads last month - 3,695 stars on GitHub - 1 maintainer
tonal-index 2.2.2
Music library providing iterable collections of every possible note, scale and chord
9 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 27 downloads last month - 5 stars on GitHub - 1 maintainer
guitar-chord-sequence 1.3.12
A javascript library for working with guitar chord sequences, built for the capo.guru project
17 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
tonal-pitches 0.50.4
Work with pitches
3 versions - Latest release: about 8 years ago - 9 dependent packages - 1 dependent repositories - 8 downloads last month - 3,694 stars on GitHub - 1 maintainer
Top 3.5% on npmjs.org
tonal-roman-numeral 2.2.2
Work with roman numeral representation of degrees
3 versions - Latest release: about 5 years ago - 2 dependent packages - 193 dependent repositories - 1.15 thousand downloads last month - 3,694 stars on GitHub - 1 maintainer
chordsheet 0.1.0
An NPM module to render HTML code out of markdown text with chords.
27 versions - Latest release: over 7 years ago - 2 dependent packages - 2 dependent repositories - 34 downloads last month - 5 stars on GitHub - 1 maintainer
chordsheet-cli 0.0.2
A CLI to create chord sheets out of markdown files
2 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
chordie 0.0.5
Simple tools for dealing with music chords and key analysis
5 versions - Latest release: over 1 year ago - 1 dependent package - 2 dependent repositories - 10 downloads last month - 9 stars on GitHub - 1 maintainer
chords-web-component 0.0.2
Custom element for guitar chords created using web-components and canvas
2 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
enharmonics 1.0.3
Get music note enharmonics
6 versions - Latest release: over 8 years ago - 4 dependent packages - 3 dependent repositories - 19 downloads last month - 3,691 stars on GitHub - 1 maintainer
@moonwave99/paino 0.1.15
Simple HTML/CSS Piano diagram generator
22 versions - Latest release: over 1 year ago - 1 dependent package - 2 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
markov-chords-generator-whistle 1.0.0
Generates musical chords using markov chains
1 version - Latest release: over 2 years ago - 2 dependent packages - 4 downloads last month - 1 maintainer
binary-set 0.1.1
Work with binary representations of pitch sets
1 version - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 3,687 stars on GitHub - 1 maintainer
Top 2.5% on npmjs.org
tonal-interval 2.2.2
Music interval creation and manipulation
32 versions - Latest release: about 5 years ago - 7 dependent packages - 246 dependent repositories - 1.37 thousand downloads last month - 3,652 stars on GitHub - 1 maintainer
Top 2.2% on npmjs.org
tonal-array 2.2.2
Tonal array utilities
38 versions - Latest release: about 5 years ago - 17 dependent packages - 246 dependent repositories - 1.39 thousand downloads last month - 3,652 stars on GitHub - 1 maintainer
Top 2.2% on npmjs.org
tonal-note 2.2.2
Parse and manipulate music notes in scientific notation
38 versions - Latest release: about 5 years ago - 20 dependent packages - 248 dependent repositories - 1.37 thousand downloads last month - 3,674 stars on GitHub - 1 maintainer
Top 2.5% on npmjs.org
tonal-chord 2.2.2
Music chords creation and manipulation
39 versions - Latest release: about 5 years ago - 5 dependent packages - 242 dependent repositories - 1.38 thousand downloads last month - 2,742 stars on GitHub - 1 maintainer
Top 2.8% on npmjs.org
tonal-scale 2.2.2
Music scales creation and manipulation
37 versions - Latest release: about 5 years ago - 3 dependent packages - 241 dependent repositories - 1.33 thousand downloads last month - 3,638 stars on GitHub - 1 maintainer
react-chord-parser 0.3.0
React component and utility for parsing and rendering guitar/ukulele chords
7 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 8 stars on GitHub - 1 maintainer
songcheat-core 1.0.33
Base classes for handling SongCheat files. Can be used both in Node and in browser.
34 versions - Latest release: about 4 years ago - 1 dependent repositories - 6 downloads last month - 1 maintainer
@smallhillcz/musicparser 3.0.1
MusicParser
8 versions - Latest release: over 3 years ago - 2 dependent packages - 3 downloads last month - 0 stars on GitHub - 1 maintainer
tonal-distances 0.50.4
Transpose and find distance between notes
3 versions - Latest release: about 8 years ago - 3 dependent packages - 1 dependent repositories - 9 downloads last month - 3,687 stars on GitHub - 1 maintainer
guitar-chords 1.2.0
Get guitar chords
3 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 1 maintainer
tonal-detect 2.2.2
Find the name of pitch class sets
6 versions - Latest release: about 5 years ago - 1 dependent package - 7 dependent repositories - 17 downloads last month - 3,686 stars on GitHub - 1 maintainer
chorus 0.6.4
A harmony-based music composition toolkit with MIDI I/O
12 versions - Latest release: about 4 years ago - 1 dependent package - 1 dependent repositories - 185 downloads last month - 7 stars on GitHub - 1 maintainer
@pcmnac/chord-transposer 2.0.1
Transposes musical chords in arbitrary text.
2 versions - Latest release: almost 6 years ago - 2 dependent packages - 1 dependent repositories - 6 downloads last month - 54 stars on GitHub - 1 maintainer
Top 6.4% on npmjs.org
chord-transposer 3.0.9
Transposes musical chords in arbitrary text.
28 versions - Latest release: 9 months ago - 3 dependent packages - 9 dependent repositories - 180 downloads last month - 54 stars on GitHub - 1 maintainer
Related Keywords
music 133 music-theory 65 javascript 64 typescript 62 scale 62 transpose 61 interval 58 chord-progression 58 tonal 57 functional 55 key-signatures 55 theory 52 guitar 37 chord 36 note 26 scales 16 notes 16 midi 13 guitar-chords 10 music-notation 9 piano 9 ukulele 9 intervals 9 chordpro 9 notation 8 parser 8 tabs 8 lyrics 7 jazz 7 music theory 6 guitar-tabs 6 chordsheet 6 pitch 6 dictionary 5 chord-charts 5 chord-sheet 5 song 5 svg 5 react 5 composition 4 tablature 4 parsing 4 tab 4 fretboard 4 parse 4 npm-package 4 progressions 3 harmony 3 keys 3 rhythm 3 melody 3 songs 3 progression 3 guitar tabs 3 guitar chords 3 chordsheet-editor 3 cli 3 instrument 3 pcset 3 collection 3 diagram 3 score 3 key 3 rust 3 generator 3 range 2 python 2 gamut 2 chord-parsing 2 chord-intervals 2 chord-naming 2 nashville 2 chord-symbols 2 iReal 2 es6 2 markdown 2 music-composition 2 html 2 api 2 audio 2 harmonics 2 sheet 2 live 2 nodejs 2 music notation 2 detector 2 solfege 2 collections 2 transposition 2 array notation 2 roman 2 iReal Pro 2 render guitar chord 2 vitepress 2 vite 2 fret 2 visualization 2 ukelele 2 synth 2 metronome 2