Being left-handed isn’t a problem & shouldn't be a barrier to progress, with DecPlay.
Both hands are playing patterns at the same time and, whilst being right-handed might slightly speed up the process of learning the right hand part, being left-handed will have a similar benefit for the left hand part.
Usually, applying the 3'S' method helps with many issues:
- taking Small sections half of 1 line of music
- playing extremely Slowly
- both hands Separately, before joining them and repeating the half line.