Show HN: AutoMIDIFlip – An automatic MIDI flipper • Hacker News Board

Re: Show HN: AutoMIDIFlip – An automatic MIDI flipper

#31

Post by anotheryou » Sat, Feb 04, 2017, 1:52 PM UTC

I still want a midi tool that lets me re-do the timing manually:

Have a melody, discard all timing info, place/record melody by just tapping on the spacebar.

I wonder how synthesizer music sounds when it's all human timing.

Re: Show HN: AutoMIDIFlip – An automatic MIDI flipper

#32

Post by dang » Sun, Feb 05, 2017, 11:15 PM UTC

bcook wrote: post #29

Can I assume you have a trust-fund buffering your insolence?

Whoa. Personal attacks are not allowed here, so please don't do this again.

We detached this comment from https://news.ycombinator.com/item?id=13558991 and marked it off-topic.

Re: Show HN: AutoMIDIFlip – An automatic MIDI flipper

#33

Post by bcook » Sun, Feb 05, 2017, 11:52 PM UTC

dang wrote: post #32

bcook wrote: post #29

Can I assume you have a trust-fund buffering your insolence?

Whoa. Personal attacks are not allowed here, so please don't do this again. We detached this comment from https://news.ycombinator.com/item?id=13558991 and marked it off-topic.

Yeah, my bad.

Re: Show HN: AutoMIDIFlip – An automatic MIDI flipper

#34

Post by pierrec » Mon, Feb 06, 2017, 4:38 AM UTC

stevehiehn wrote: post #19

This is the concept of 'Invertible Counterpoint'. Which is the extreme discipline of writing harmonies whos roles can be reversed and still sound good. i.e the bassline becomes the melody vice versa. http://www.music.ucsb.edu/faculty/rothfarb/courses/103/inver...

A bit late, but this is not an application of invertible counterpoint. It's closer to melodic inversion (which is also mentioned in the article you linked). Here's an example comparing the two:

      Source:       |     Invertible CP:   |      MIDI flip:      |
           .   .    |            ...       |               ....   |
  Voice A:  . . .   |   Voice A:           |   Voice B:           |
             .   .  |               ....   |            ...       |
                    |                      |                      |
           ...      |            .   .     |              .   .   |
  Voice B:          |   Voice B:  . . .    |   Voice A:  . . .    |
              ....  |              .   .   |            .   .     |

What we see is that invertible CP keeps each voice in its register and switches the melodies by means of simple transposition. Conversely, MIDI flipping forces low-register voices to play in a high register (and vice versa), and heavily transforms the melodies by flipping them (that's the melodic inversion).

And overall, invertible CP is rather easy to apply in a composition (I do it all the time!)

Re: Show HN: AutoMIDIFlip – An automatic MIDI flipper

#35

Post by stevehiehn » Fri, Feb 10, 2017, 3:23 AM UTC

pierrec wrote: post #34

stevehiehn wrote: post #19

This is the concept of 'Invertible Counterpoint'. Which is the extreme discipline of writing harmonies whos roles can be reversed and still sound good. i.e the bassline becomes the melody vice versa. http://www.music.ucsb.edu/faculty/rothfarb/courses/103/inver...

A bit late, but this is not an application of invertible counterpoint. It's closer to melodic inversion (which is also mentioned in the article you linked). Here's an example comparing the two: Source: | Invertible CP: | MIDI flip: | . . | ... | .... | Voice A: . . . | Voice A: | Voice B: | . . | .... | ... | | | | ... | . . | . . | Voice B: | Voice B: . . . | Voice A: . . . | .... | . . | . . | What we see is that i…

Interesting! Thanks for explaining it :)