March 4th, 2014, 02:41 AM  #1 
Newbie Joined: Mar 2014 Posts: 4 Thanks: 0  Hello
Heya, I'm new to this forum, so I'd like to introduce myself. My real name is Jacob Collstrup and I live in Denmark. I registered on these forums, because I like maths and I'm hoping to learn more, much more. So a good hello to you all! =oD Best regards, Jacob Collstrup 
March 4th, 2014, 04:16 AM  #2 
Math Team Joined: Aug 2012 From: Sana'a , Yemen Posts: 1,177 Thanks: 44 Math Focus: Theory of analytic functions  Re: Hello
Hey Jacob Collstrup , welcome to the forums !

March 4th, 2014, 05:36 AM  #3 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Hello
Welcome! I saw your post about music and math, good stuff. It's a topic that often comes up at the OEIS, albeit not one we're quite figured out, aside from adding the option to 'play' our sequences. Some have a surreal sort of beauty to them, but most just don't work well in that format.

March 5th, 2014, 05:45 AM  #4 
Member Joined: Feb 2014 Posts: 32 Thanks: 0  Re: Hello
Hi! Welcome to forums! 
March 5th, 2014, 06:30 AM  #5 
Math Team Joined: Apr 2012 Posts: 1,579 Thanks: 22  Re: Hello
Well, the trick I used to make the Fibonacci sequence "earworthy" is to set it mod 5 and play it on a pentatonic scale. Note sequences almost can't sound bad if you keep things pentatonic, which is why lots of popular songs use them, they are used in early music education and novice improv artists (like me!) try to pick one appropriate for a given piece and stay on it with just the occasional "passing note" off the scale, after which you hop right back on. When I compose, I like to use more notes, including lots of half tones. But when you gotta "compose on your feet", you can end up with a lot of nasty clangers if you get too adventurous too soon. Same with formula driven music. Give it too many "landing spots" and you'll end up with musical phrases from hell or, worse, something that sounds like John Cage wrote it. Popular pentatonic scales are DoReMiSoLa and DoReFaSoLa, ie skip either Fa or Mi and Ti is RIGHT OUT. You can of course set these to any key.

March 5th, 2014, 10:04 AM  #6 
Global Moderator Joined: Nov 2006 From: UTC 5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms  Re: Hello
Good idea, in general, but since the Fibonacci numbers are periodic mod 5, the tune might get a bit old. (Of course it's periodic to any modulus!)

March 5th, 2014, 11:55 AM  #7  
Math Team Joined: Apr 2012 Posts: 1,579 Thanks: 22  Re: Hello Quote:
 