Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
Guitar Pro 7 - Create, play and share your tabs
GNUitar - GNUitar is guitar effects software that allows you to use your PC as guitar processor.
TuxGuitar - A Multitrack tablature editor and player.
Ampire - State Space Modeled guitar amp/cab/stompbox simulator.
MuseScore.org - Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore. For Windows, Mac and Linux.