In future, I'd like to do an on-our-own tour of music-related sites in Europe, especially those related to Bach, Beethoven and Mozart, among others. Going during a music festival is a possibility as well. Does anyone know of online resources that would be helpful in constructing such an itinerary? Since we're retired, we could do this any time of the year, though we much prefer to travel off-season.
For other instances of themed travel, I've found it helpful to look at itineraries of organized tours even if I decide to go there on my own.
Thanks in advance for any links or reference sites!