I think it is something that you have to 'get' in the same way that, say, dance music is. If you listen to dance music without understanding that it is to dance to, the you are likely to have unmet expectations. If you think 'melodies' can only be played using crotchets and quaver and that you cannot play spontaneously and melodically with sixteenth notes, then you are not going to hear the melodies and could interpret it as 'noodling'. There are noodlers out there, undoubtedly (count me in, for starters), but most definitely no-one on KoB.