MyChord - 任何歌曲的音樂和弦探測器
yallafactory inc.
ChordU - get chords & notes
ChordU
MyChords - find the chords
mychords
Chordify: Song Chords & Tuner
Chordify B.V.
Cifras
leobrasil
Chord Tracker
Yamaha Corporation
Chord Analyser (Chord Finder)
Pragmatic apps
G-Chord (Guitar Chord)
Asoft
P-Chord (Piano Chord)
Chord Progression
GleickApps