Sorry if this is trivial but I am self taught and cannot find the meaning of this bracket on a sheet.
This is taken from Merry Christmas Mr Lawrence by Ryuichi Sakamoto
My only supposition is that the writer is suggesting that the C being pointed to can be played using the right hand.
The bracket means that the high C on the low staff is meant to be played with the right hand.
Left hand: Bb-F-Ab
Right hand: C-Eb (and the rest of the melody).
Looks more like a bracket than an "L" to me. I would venture it to mean that the 8va (the upward jump in register) extends to those notes also of the left hand (the bass clef). Anyone concur?