Musical Composer

(All mana on this card is not mana, but music
markers.) (Effects of this card are done before
Musical Composer in front of you)
When you draw this card, reveal it, and put {1} in front of you.
Whenever you play a creature, take the converted
mana cost number of music markers.
When you have enough music markers, tap them
and play this card.
When Musical Composer dies, discard all music markers and draw a card.