Frivolous Performer

Bardic knowledge.

You suffer a -10 penalty on all bardic knowledge checks. This penalty does not apply if the relevant knowledge involves the Perform skill in which you have the most ranks. For example, if you have the most ranks in Perform (wind instrument), you may use bardic knowledge without penalty to identify famous wind instruments, to remember facts about famous wind instrument players, or to identify places that make quality wind instruments.

Having focused your time on practicing and performing, you have gathered little useful information in your travels.