I personally use QSLM and JKLM on a French keyboard (I'm French myself). You will ask me why I have two key configurations on my game? just so I have a little trouble on my right hand, I could help with my left hand and vice versa. ^^
With a little practice this style of play (for example on the fifth version, you can play the scores 4 out of 6 partitions, it will then move along the entire length, it is enough just to pay its keys, in order from top to bottom, it gives: QMK(F)D(J)S(H)L(G) * on a French keyboard), the reflex will come when a little difficulty on one of our hands. For me, this assistance has saved me on a lot of songs.

*parentheses refer to the second column, the letter in brackets next to it is written just before.
PS: sorry for putting the French keys, but I don't know the English keys, which prevent me to give you accurate information about yours ...