Well, Im not surprised that the music choices for your experience in class ,were as described.It points to a lack of knowledge, about the inadequacy of the teacher . Its a well know fact that, there are many "teachers?" who wouldnt even know a clave for e.g. if it bit them in the A.. Appropriate music for ANY class , is how classes need to be planned. I spend at least 1 hour before any class ,selecting music, and I play at least 7/8 songs during my sessions. I also change the selections, week to week . Not only is it important class wise, but the exposure to different styles of music for beginners,is necessary prior to their ventures into the club world. So.... dont judge all teachers from your experiences, there are some damn good knowledgeable ones out there.