There is an updated pull request by heittpr against master on the void-packages repository

https://github.com/heittpr/void-packages tuxguitar
https://github.com/void-linux/void-packages/pull/38445

tuxguitar: update to 1.5.6.
#### Testing the changes
- I tested the changes in this PR: **briefly**

A patch file from https://github.com/void-linux/void-packages/pull/38445.patch is attached