Wikipedia on TSOL:
TSOL are an American punk band which formed in 1979 in Long Beach, California. TSOL is short for True Sounds of Liberty although they are rarely referred to by their full name.
Although most commonly associated with hardcore punk, TSOL's music varies on each release. They have also released music in the styles of deathrock, art punk, horror punk, and the plethora of other punk music labels.