Music Lessons during Sefirah?

Igros Moshe, (OC III #87) Question: Are music lessons permitted during Sefira? Answer If the lessons are for parnassah it is permitted even during Sefirah since for him it is not for joy. However if it is for pleasure it is prohibited during Sefira according to the custom. The Rambam (Tanis 5:14) rules that it is prohibited the entire year. This is also the view of Shulchan Aruch (OC. 560:3). It is appropriate to be strict like the Rambam and Shulchan. Even the Remah cites a view that music is permitted if not at a banquet and for one who is not habituated. Therefore one should not protest those that are lenient This is also applicable to listening to instrumental music. However during Sefirah it is prohibited according to everyone.