Classroom Jam - 3 Part Ensemble & Percussion. Playing together is the basic idea and with Classroom Jam anyone can take part, making this an exceptionally useful teaching aid, a valuable introduction to the experience of ensemble playing and lots of fun!. The arrangement will suit just about any instrument from recorder to glockenspiel to guitar to flute, in addition to the written percussion part. Song: Any dream will do, Give me oil in my lamp, Swing Low Sweet Chariot, Top of The World & More.