Chord Tracker
Yamaha Corporation
和弦检测器-跟踪器和MIDI
Guitar Tabs X
Ultimate Guitar: Chords & Tabs
Ultimate Guitar USA LLC
Chord Analyser (Chord Finder)
Pragmatic apps
Chord Progression Composer
Jean-Philippe Glomot
Chord detector
Xssemble
Cifras
leobrasil
G-Chord (Guitar Chord)
Asoft
P-Chord (Piano Chord)
Chord Library
Terence M