Permutations function for musical notes

**drongomala** · 07-23-2009, 10:30 AM

THREAD SOLVED...and very well too

Hi All,

I saw a few posts on permutations/combinations functions and pointers to the Myrna Larson toolkit/workbook but I think my need is slightly different from that use case (maybe not!)

I need to find all 3, 4 and 5 letter permutations based on 5-8 musical notes as input. FYI the permutations will be chords.

i.e. C, D, E, F, Ab, Bb, B as an input musical scale input would yield

All three note combos :
C,D,E
C,D,F
C, D, Ab
....
all 4 note combos
C,D,E,F
C,D,E,Ab

all 5 note combos
C,D,E,F,Ab
C,D,E,F,Bb
...

I'd like to structure the sheet as having 12 columns (1 for each note within an octave) with the combo placed under the right column i.e. C goes in 1, Eb in 4.

any help on this matter much appreciated

Drongomala

**drongomala** · 08-08-2009, 03:35 PM

Bump....would pay for a script that can help out here..!

**martindwilson** · 08-08-2009, 04:26 PM

whats the range of notes from c to whatever
and do you want permutations or combinations? 123 2 from 3 permutations are
12
13
21
23
31
32
combinations 2 from 3 are
12
13
23
ah since they are chords you wont have the same note twice so it's combinations then.

**martindwilson** · 08-08-2009, 10:23 PM

ok try this,it took ages to do and if some bright spark comes up with some code to do it i'll sulk! lol

**drongomala** · 08-10-2009, 04:18 AM

Hi Martin,

Thank you so much for this - I really appreciate it. You can't believe how much time this will save me.

If there is anything I can do in return then please let me know - how can I buy you a Mojito?!

Drongomala