I would really like to learn some of the new abstract composition styles noticed in music such as flying lotus, washed out, toro y moi, neon indian, skeleton zoo and others. The mastering and mixing elements would be so important as far as creative technique I think it would be a challenging tutorial that would also really help delve into the sonic landscape more.
here are some examples:
Flying Lotus
Flying Lotus - Tea Leaf Dancers - YouTube
Washed Out
Washed Out - Amor Fati [OFFICIAL VIDEO] - YouTube
toro y moi
Toro Y Moi "Talamak" - YouTube
neon indian
Neon Indian "Polish Girl" by Tim Nackashi - YouTube
skeleton zoo
skeleton zoo - devil's lettuce - YouTube