Rosegarden

Tracker: Feature Requests

1 Randomize - note length, pitch, start, velocity - ID: 1576202

Last Update: Comment added ( rg2005 )

Details:

Hello,

[If this is already in there, or already requested,
please let me know.]

I used to use a power sequencer package from Voyetra
called Sequencer Plus Gold. Unfortunately, it never
made it out of the DOS world. Luckily, I have found
Rosegarden, but it is lacking one feature I really used
to use frequently: Randomization.

In a nutshell, the Randomization utility let you
randomize velocity, start time, length, and even pitch.
Each of these would randomize from the current (e.g.
adjust the velocity +- up to a specified amount).

The use for the first three was basically so you could
take something you either hand entered or that you had
over quantized and give it a "real" feeling to it. Not
every note would be the exact same intensity, start
perfectly and end perfectly. It really helped give a
"real" feel to it.

The pitch randomization was helpful for creating some
"industrial" music. I would sometimes take a set of
the same notes (let's say C3 1/4 notes) and repeat them
for 10 bars. I could then randomize the pitch and get
an interesting effect.

Could a "randomization" feature be added to Rosegarden?

Thanks,
- John

Submitted:

John Werner ( jwernerny ) - 2006-10-12 21:01

Priority:

Status:

Open

Resolution:

None

Assigned:

Nobody/Anonymous

Category:

None

Group:

None

Visibility:

Public

Comments ( 3 )

Date: 2008-06-07 15:29 Sender: rg2005 Dear John, maybe we should join this feature request with my suggestion of a "Logical Transformer". One of the actions could indeed be: Transpose by [randomvalue (-2..+2)] First I considered your request to be focussed on random composition. This is yet another nice thing to have. But most variants are better done separately from rosegarden.
Date: 2006-10-13 12:40 Sender: jwernerny Logged In: YES user_id=371029 I do like the idea of having it as an ALSA sequencer client, but it does limit what can be done with changing note start events. You could never start a note early. You could always delay it. I will sometimes adjust note starts on some parts to be just a hair early to give more of a "push" to the music. - John
Date: 2006-10-13 04:24 Sender: dmmcintyr Logged In: YES user_id=663564 This is sounding more like an external applet or a plugin to me. There really wouldn't be any sensible place to put such a thing as this within Rosegarden, would there? We certainly have too many widgets to juggle as it is. But if you wrote it as an ALSA sequencer client like ZynAddSubFX, say, there would be all kinds of interesting possibilities for routing the altered MIDI stream around, and the little gizmo could be used by anybody doing any kind of ALSA sequencer work. This would be more in keeping with the Linux model of using lots of little dedicated pieces that do one job well instead of huge, monolithic applications. Rosegarden is already too monolithic for some tastes. It might could work as a DSSI plugin that synthesized MIDI events instead of sound. I don't know if that's possible with DSSI. Anyway, there's really nothing to build on inside Rosegarden as far as having a place to put something like this, so it would be approximately the same amount of effort to write it as a stand-alone project. Or tack it onto something else. I seem to remember there's a MIDI arpeggiator applet out there somewhere. This sounds like an interesting layer to add to that, maybe. Or maybe start with KMidiMon for the foundation, then gut it, add a dialog to control the various parameters, and do whatever it needs to be able to send events back out. Interesting, but not a Rosegarden feature per se, I don't think. Unless one of the other developers strongly disagrees.

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Field	Old Value	Date	By
priority	5	2006-10-13 04:24	dmmcintyr

Rosegarden

Tracker: Feature Requests

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