Q.   How often should I rosin my bow, and how do I tell when it needs rosin?

A.  The answer to this question depends on how often you play your violin.  I typically tell my beginning students to rosin their bows one to two times a week.  More advanced students will most likely want to rosin their bows more frequently.  To answer the second question, if you are a more advanced player you will be able to tell by how the bow responds on the string if you need more rosin or not.  For less experienced players, I suggested that they hold the bow and look directly down the bow hair.