What strategies have you used to develop skills that aren't strengths of either parent?
Using musical instruments as an example...
1) Children might have an initial exposure by seeing a band on TV, during a parade, sporting event, concert, etc. Parents could initiate a conversation about the people, instruments, music.
2) There are sources online for introducing a child to basic vocabulary and concepts, while gauging the child's interest. One is PBS kids:
http://pbskids.org/games/music/3) Local instrument shops may offer lessons and/or have a list of teachers of musical instruments in the community.
4) Local schools may also lave a list of accomplished tutors.