Music and Audio Tools
This category collects the music tools built for practice, reference, and creative work — from interactive fretboards and chord diagrams to ear trainers, beat sequencers, and theory references.
- Covers guitar, bass, ukulele, piano, and general music theory.
- Useful for beginners learning chords and experienced musicians needing quick references.
- Interactive tools run entirely in the browser — no app download needed.
Featured picks in Music and Audio Tools
Start with the higher-interest tools below, then browse the full category list if you need a narrower utility.
Bass Fretboard
Interactive bass guitar fretboard with all notes across 4 strings and 24 frets. Scale highlighting in standard, drop D, and 5-string tunings.
BPM Counter
Tap tempo BPM calculator. Tap any key to the beat and get real-time BPM with Italian tempo name. Auto-resets after 3 seconds.
Chord Finder
Click piano keys to identify any chord. Shows all matching chord names, root, type, and inversion for any combination of notes.
Chord Formulas
Interval structures for all common chord types — triads, seventh chords, extended chords, and suspended chords with examples in C.
Chord Transposer
Paste a chord sheet and transpose all chords to any target key instantly. Supports sharps and flats preference.
Chords in Keys
All 7 diatonic chords for any key and mode — major, natural minor, and all 5 church modes. Shows Roman numerals and harmonic function.
Related topic hubs
These hubs collect nearby tools by job to be done instead of by internal category.
All Music and Audio Tools apps
36 apps currently live in this category.
Bass Fretboard
Interactive bass guitar fretboard with all notes across 4 strings and 24 frets. Scale highlighting in standard, drop D, and 5-string tunings.
BPM Counter
Tap tempo BPM calculator. Tap any key to the beat and get real-time BPM with Italian tempo name. Auto-resets after 3 seconds.
Chord Finder
Click piano keys to identify any chord. Shows all matching chord names, root, type, and inversion for any combination of notes.
Chord Formulas
Interval structures for all common chord types — triads, seventh chords, extended chords, and suspended chords with examples in C.
Chord Transposer
Paste a chord sheet and transpose all chords to any target key instantly. Supports sharps and flats preference.
Chords in Keys
All 7 diatonic chords for any key and mode — major, natural minor, and all 5 church modes. Shows Roman numerals and harmonic function.
Chromatic Scale
Interactive display of all 12 chromatic notes. Click any note to hear it, see its frequency, and explore enharmonic equivalents.
Circle of Fifths
Interactive SVG circle showing all 12 major keys and relative minors. Click any key to see its signature, diatonic chords, and relative minor.
Circle of Thirds
Explore chromatic mediant relationships. Notes arranged by major and minor third distance — the building blocks of chord construction.
Clef Reference
Complete treble and bass clef note reference with SVG staves showing all natural notes. Includes mnemonics for every line and space.
Common Chord Progressions
20 classic progressions across 6 genres with Roman numerals. Transposable to any key with audio playback for each progression.
Diatonic Scale
Comprehensive key reference — scale notes, diatonic triads, seventh chords, and all 7 modal rotations for any major key.
Drum Patterns
Visual drum pattern reference with 10 patterns across 6 genres. 16-step grids with Web Audio playback for rock, funk, jazz, and more.
Guitar Chords
SVG fingering diagrams for open and barre guitar chords. Filter by root and type. Covers major, minor, 7th, maj7, sus, and more.
Guitar Fretboard
Interactive guitar fretboard with all note names across 6 strings and 12 frets. Highlight scales and modes in multiple tunings.
Guitar Tuning Chart
Standard and 17 alternate guitar tunings with string-by-string note reference. Covers drop, open, modal, and custom tunings.
Key Signatures
Filterable reference table for all 30 major and minor key signatures. Shows sharps, flats, note names, and relative key for each.
Lil Beat Maker
8-track step sequencer with 16 or 32 steps. Build drum patterns with kick, snare, hi-hat, and more using Web Audio synthesis.
Music Intervals
Complete reference for all musical intervals from unison to major 13th. Shows abbreviations, half steps, quality, and consonance.
Music Theory Cheat Sheet
All core music theory on one page — intervals, scales, chords, modes, key signatures, progressions, and ear training song anchors.
Note Identification
Identify notes on treble or bass clef staff. Flashcard-style ear trainer with score tracking and three difficulty levels.
Overtone Series
Visual harmonic overtone series explorer. See the first 16 partials above any fundamental — frequencies, note names, and cents deviation.
Paradiddle
Drum rudiment trainer for all four paradiddle variations. R/L sticking notation with accent marks and BPM-synced audio playback.
Pentatonic Scale
Major and minor pentatonic for any root. Shows all notes on a piano keyboard, 3 guitar box patterns, and full interval breakdown.
Piano Chords
Visual piano chord voicings for any root and type. Select from 18 chord types and hear the arpeggio played via Web Audio.
Piano Notes on Staff
Click any piano key to see the note placed on treble and bass clef staves simultaneously. Shows name, octave, MIDI number, and frequency.
Relative Pitch
Interval ear training. Hear two notes and identify the interval between them. Tracks score, streak, and accuracy across all 12 intervals.
Rhythm Challenge
Hear a rhythm pattern and tap it back. Scored on timing accuracy in milliseconds. Three difficulty levels, adjustable BPM.
Scale Finder
Select any root and scale type to see all notes, intervals, and a keyboard diagram. Covers 15 scales from major to diminished. Playable.
Scale Formulas
Whole/half step patterns for major, natural minor, all 7 modes, pentatonic, blues, harmonic minor, and more. Color-coded W/H boxes.
Solfege
Interactive movable-do solfege reference. Click Do Re Mi Fa Sol La Ti to hear each pitch and see its scale degree in any key.
Time Signatures
Reference for 7 common time signatures with beat groupings, feel descriptions, and count-in playback. Covers 4/4, 3/4, 6/8, 12/8, 5/4, and more.
Ukulele Chords
SVG chord diagrams for ukulele in standard GCEA tuning. All common roots and types including major, minor, 7th, and maj7.
Ukulele Fretboard
Interactive ukulele fretboard in standard GCEA tuning. Highlight scales across all 12 frets and 4 strings. Supports D tuning and Low G.
Virtual Piano
Playable two-octave piano keyboard in your browser. Click keys or use keyboard shortcuts. Selectable waveforms and adjustable sustain.
Xylophone
Playable virtual xylophone with 15 colorful bars across two octaves. Click or use keyboard shortcuts. Selectable waveforms.