Musician 1 to 4 and the Performing Arts badge

To get the music badge off the ground Roger needs to hear Explorers play their
instruments at least twice to evaluate them improving their music pieces. 

You need to play your instruments to Roger at some point, then go away and
work on the pieces and then come back for a replay to show that you have
improved. 

3rd June & 10th June remember to bring your instruments to play 2 or 3 pieces.