The canon Earth and Time (Level: medium) for four voices a cappella by Hans Helsen sounds like a waterfall. Quick entries guarantee that the singers are engaged and have to work together in harmony to ensure that this train doesn’t get off track. Very challenging and interesting to work on.

In the newly composed canons (3 Levels: easy/medium/advanced) from the Panda’s CHOIREOGRAPHIES series, music and movement go hand in hand. Panda van Proosdij created the term “Choireography” as a des...