It is about Irish traditional music in the form of dance tunes. This is because my focus is not on songs and airs.

I received a suggestion from someone to change the term 'performance' into 'playing'. I am aware of the fact that music is not performed, but played at sessions. Sorry for the mistake. I have therefore made an improved version of my questionnaire. The link to this is:
http://www.surveymonkey.com/s/22JG2ZK