MarauderX
Explorer
It really depends on you game world. In mine, songs and stories are the primary way people remember legends or hear news about a distant king or other lands. Bards are a whole character class for this purpose, and are supposed experts at working a crowd, knowing obscure info about distant places, etc. because they spend the late nights working the tavern and performing to get paid. Training? Nah, I would call it practice. If you do something other people like, do it again later. Pretty soon you are an expert and realize people prefer to hear a catchy melody over loud drums, and next thing you know your PC is the best flute player in the eastern kingdom. Here are some ideas for instruments of ~the age... The House of Musical Traditions.