Music critic: How well an underground rock group' s recordings sell is no mark of that group' s success as an underground group  After all, if a recording sells well, it may be because some of the music on the recording is too trendy to be authentically underground; accordingly, many underground musicians consider it desirable for a recording not to sell well
But weak sales may simply be the result of the group' s incompetence
An underground rock group is unsuccessful as an underground group if it is incompetent or if any of its music is too trendy to be authentically underground, or both.