Ubuntu guitar software for guitarist

I play a little guitar. Yesterday I came across a problem: how do I play gp5, gp4 or ptb in Ubuntu? In Windows, we have Guitar Pro, which is not free, but I think it's an easy job to get a serial number...But how about in Ubuntu?

The answer is Tuxguitar.

With TuxGuitar, you will be able to compose music using the following features

• Tablature editor
• Score Viewer
• Multitrack display
• Autoscroll while playing
• Note duration management
• Various effects (bend, slide, vibrato, hammer-on/pull-off)
• Support for triplets (5,6,7,9,10,11,12)
• Repeat open and close
• Time signature management
• Tempo management
• Imports and exports gp3,gp4 and gp5 files

Here's the screenshots:
http://www.tuxguitar.com.ar/screenshots.html


When I installed the Tuxguitar, there's a soundbank error. The solution is already on the website:
http://www.tuxguitar.com.ar/tgwiki/doku.php?id=doc:error_soundbank

Other than Tuxguitar, I'd like to introduce another useful software Gtick. This is not only for guitarist.
http://www.antcom.de/gtick/

Gtick supports different meters (Even, 2/4, 3/4, 4/4 and more) and speeds ranging from 10 to 1000 bpm. It's really useful for beginner musicians.