Brackets for excersise transcription

[Carlos Garcia Suarez]

The attached file provides .ly input for a series or exercises for piano.

I have used the StaffGroup context to create a title for each staff, but I
would like to get rid of the bracket at the beginning of each line.

How can I do that ?

Is there any \property StaffGroup.bracket ??? or something.

In addition, I would like to separate more each line, to make it easier to
read. Any help ?

Thanks a lot

Carlos
Madrid

arpegios.ly
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