As I've said before, I'm working on the Bach inventions, among a few other pieces.
When I practise/learn any new piece, I prefer to break it into manageable chunks, usually separated in some obvious way.
If I'm playing, say, Mozart's Turkish March, I do find the piece difficult but it has a nice logic to it. For instance, I can break it into short sections of around 8 bars each that are separated by natural pauses. In this piece, I can break my own learning up into focusing on these much smaller sections and I make progress faster (I hope that made sense...)
However, I do not find the same logic or natural pauses in some pieces like the Bach inventions. I have difficulty just stopping after 4 measures and repeating my practise or something equally manageable since I need to make sure I'm in the correct position/dynamics etc. As a result, I have trouble focusing on the "hard parts" and have to start from the beginning each time.
First, is this a common thing or is it just a weirdness of my own practising that I should just get over?
Second, of its not just me, what should I do?