tried to install it just now as im walking around aimlessly. looks like it needs java:

tuxguitar depends on openjdk-6-jre | java-gcj-compat | sun-java6-jre | sun-java5-jre | java-virtual-machine; however:
Package openjdk-6-jre is not installed.
Package java-gcj-compat is not installed.
Package sun-java6-jre is not installed.
Package sun-java5-jre is not installed.
Package java-virtual-machine is not installed.
tuxguitar depends on libitext-java; however:
Package libitext-java is not installed.
tuxguitar depends on libswt-gtk-3.4-java | libswt3.2-gtk-java; however:
Package libswt-gtk-3.4-java is not installed.
Package libswt3.2-gtk-java is not installed.
tuxguitar depends on libswt-cairo-gtk-3.4-jni | libswt3.2-gtk-java; however:
Package libswt-cairo-gtk-3.4-jni is not installed.
Package libswt3.2-gtk-java is not installed.
tuxguitar depends on libswt-mozilla-gtk-3.4-jni | libswt3.2-gtk-java; however:
Package libswt-mozilla-gtk-3.4-jni is not installed.
Package libswt3.2-gtk-java is not installed.
tuxguitar depends on xulrunner-1.9; however:
Package xulrunner-1.9 is not installed.
dpkg: error processing tuxguitar (--install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
tuxguitar