Piano to MIDI or Synthesize Piano Roll

[Rafael Valle]

Dear lists,

Do you know of any routine to convert from piano roll to MIDI or to synthesize it directly?

[Douglas Eck]

Hi Rafael, 

What do you mean by "piano roll" exactly? There is Magenta code for going to and from piano-roll-like representations to midi and also hooks for synthesis (using mido, pretty-midi, etc). 

On Tue, Feb 14, 2017 at 9:50 PM, Rafael Valle <jrafae...@gmail.com> wrote:

Dear lists,

Do you know of any routine to convert from piano roll to MIDI or to synthesize it directly?

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[Rafael Valle]

Thanks, Ori.

I do know about pretty_midi and it actually has some of my code, however, I don't remember seeing a routine to convert a piano_roll to midi or to synthesize it.

mir_eval has a routine that can synthesize any matrix of shape Timestep by Frequency using a user provided synthesis funcion, e.g. sine.

https://github.com/craffel/mir_eval/blob/master/mir_eval/sonify.py#L63

On Wed, Feb 15, 2017 at 9:27 AM, Oriol Nieto <oriol...@gmail.com> wrote:

Hi Rafael,

I use Colin Raffel's excellent pretty_midi for anything related with MIDI and Python.

Best,

uri
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Oriol Nieto | Scientist | Pandora

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[Rafael Valle]

Exactly, I'm asking around before digging in!

On Wed, Feb 15, 2017 at 9:57 AM, Oriol Nieto <oriol...@gmail.com> wrote:

Cool! Maybe it would be a good idea to include such function in pretty_midi? I much prefer fluidsynth (included in pretty_midi) than 2\pi-periodic functions when synthesizing piano.

Best,

uri

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