The attached image is from a similar touring group, which was active in Canada from 2004-2010, which can serve as inspiration: It has the kind of flair I'm looking for.
Please DO NOT incorporate the piano or music notes into the design! That immediately makes it look childish and catering only to the kindergarten sector. I prefer something more abstract. Remember that my target audience also includes teenagers and young adults of all ages, hence I don't want the mickey-mouse look.
Here are 10+ words to think about when creating the design:
sunny, musical, colourful, intelligent, dynamic, charismatic, bubbling, professional, modern, engaging, versatile.