[quote name='ambient' timestamp='1439669613' post='2844906']
Best thing is to break the line down to one section/bar/riff/part-riff at a time.
Even if it's just a couple of beats/half a bar at a time, get that bit right, then move onto the next bit, etc.
[/quote]
I agree, but don't move on to the next bit. Move on to the [i]previous[/i] bit.
That is, learn it from the end; start with the [i]last[/i] section. That way, you are always going onward to a bit that you already know. So you avoid the trap of being able to play the first bit really well (because you play it all the time) but stalling on the second.