Inspired by English lesson in Cafe Eduardo Martins (a teacher from Brazil) held your own English lesson about music in vAcademia.
He used a little number of user interactive objects features in compare with reference class, but however the result was very impressive. Eduardo uploaded some 3D-models of musical instruments into resources collection and added playing unique melody on click to each 3D-model. During all lesson the teacher and students are discussed virtual orchestra.
See recording of the Class in Virtual World