PocketMatrix

Can anyone help me translate what this japanese text says? It's really difficult and slightly time consuming see as how I have to sort through Character Map's MS Mincho font for just the right characters. I wish 999 was here, he can read japanese. But anyone that can help, please do so. So far I've only gotten "played in rhythm Soviet -" which sounds plenty wrong to me.
It's a description of a music piece, how it should be played. Thanks for the help!