[quote name='Dad3353' timestamp='1439481500' post='2843282']
I think the intention was to say that, in basic harmony, each note letter should occur once, and once only, to make reading much easier. If there's already a 'B', for instance, a 'Bb' would be best written as 'A#'. If there's already a 'D', a 'C#' would be preferable to a 'Db'. This way there are no duplicates of the scale notes. There are, of course, exceptions, such as the complete chromatic scale, but they're not considered as 'simple' scales.
Hope this helps.
[/quote]
ta, i think i can play the song (with protests ignored) just dont know the notes, and as i dont write music knowing theory isnt important ( time constraints also mean learning is difficult) i'd love to know it as noodling would be easier