I think most of it is just cultural conditioning, we play major key songs when we're happy and minor key songs when we're sad (though this is changing in modern music). Another part of it could be that minor chords have their midtones clash a bit more with there tonic notes than major chords, it sounds slightly "wrong" to our ears and takes away from the happy effect.
IDK for sure but it could be Xylophone?
Answer:
B. 3 or 4
If we are talking about a play without songs or excessive movement demands then a rule of thumb would be 3.5 to 4 full time weeks. In other words approx 120 - 160 hours with technical and dress rehearsals included, or without a minimum of 100-120 hours for a full-length play.
