From: E T Einarsson
Subject: write to midi file
Date: Tue, 16 Mar 2004 22:52:54 +0000
Message-ID: <1dc060a2.0403161452.156e810b@posting.google.com>

Please help me on this:

I'm using Allegro CL trial and I'm writing functions that will give me
lists of midi events BUT I need the code that can write them to a midi
file. (I have 5 lists; attack, duration, pitch, velocity, channel),
I'm not that skilled in programming so can any1 help me get those
lists into a midi file.

Thanx

ET
········@hotmail.com

• Re: write to midi file Christophe Rhodes
• Re: write to midi file Jeff Sandys

From: Christophe Rhodes
Subject: Re: write to midi file
Date: Tue, 16 Mar 2004 23:05:55 +0000
Message-ID: <sqfzc8xui4.fsf@lambda.dyndns.org>

········@hotmail.com (E T Einarsson) writes:

> I'm using Allegro CL trial and I'm writing functions that will give me
> lists of midi events BUT I need the code that can write them to a midi
> file. (I have 5 lists; attack, duration, pitch, velocity, channel),
> I'm not that skilled in programming so can any1 help me get those
> lists into a midi file.

(defun write-midi-event (attack duration pitch velocity channel)
  ...)

(mapcar #'write-midi-event attacks durations pitches velocities channels)

but I don't think this is such a great idea.  You may wish to break
your problem down into two stages: one that converts from your
representation into one that is closer to the MIDI format (with
note-on and note-off events rather than durations, for instance), and
one that writes into a file.

You may wish to investigate the midi support in the Gsharp score
editor; although it is bundled, it works fine as a standalone library
independent of the clim, font handling and score editor framework.

Christophe
-- 
http://www-jcsu.jesus.cam.ac.uk/~csr21/       +44 1223 510 299/+44 7729 383 757
(set-pprint-dispatch 'number (lambda (s o) (declare (special b)) (format s b)))
(defvar b "~&Just another Lisp hacker~%")    (pprint #36rJesusCollegeCambridge)

From: Jeff Sandys
Subject: Re: write to midi file
Date: Wed, 17 Mar 2004 17:39:48 +0000
Message-ID: <40588D64.6C668661@juno.com>

You might try using common music:
	http://commonmusic.sourceforge.net

E T Einarsson wrote:
> 
> Please help me on this:
> 
> I'm using Allegro CL trial and I'm writing functions that will give me
> lists of midi events BUT I need the code that can write them to a midi
> file. (I have 5 lists; attack, duration, pitch, velocity, channel),
> I'm not that skilled in programming so can any1 help me get those
> lists into a midi file.
> 
> Thanx
> 
> ET
> ········@hotmail.com