Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Yousician - Learn to play music at home, at your own pace
GNUitar - GNUitar is guitar effects software that allows you to use your PC as guitar processor.
Guitartapp Chord Pro - Guitartapp Chord Pro is the world’s largest and popular music and audio app that allows you to throw away your songbooks and start jamming with this app.
Ampire - State Space Modeled guitar amp/cab/stompbox simulator.
SongBook - SongBook is a music app that helps you to manage your song collections complete with lyrics and chords.