icloud music library syncing things i dont want it to

i do not use genius / itunes match - i work in the music indiustry and get alot of demos / promos that are on my work computer and naturally played through itunes

just downloaded new ios and itunes 12.2 for beats 1 radio (as i love it) but now most of the crappy demos and songs and promos that i never want to listen to on my phone are on there and no way to get rid of it except doing it 1 by 1 which is extremely unproductive and who knows if it will happen again

is there a way to tell my iMac or iPhone what to sync and more importantly what NOT to sync?