How often does a hammered dulcimer need to be tuned?
A. It will depend on the weather, the humidity, and the instrument itself. Sometimes when you are practicing alone you may not need to tune it for many days. That being said, however, you will develop a much better ear if you tune frequently. It will also become quicker and easier to tune the more often you tune it. However, if you have only 15 minutes available, my recommendation is to spend those minutes playing, rather than tuning.