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MMD > Archives > June 2022 > 2022.06.30 > 01Prev  Next


Seek MIDI File Player System for 61-note Reed Organ
By Kevin Seay

Hello -- I have seen recent articles in MMDigest regarding the fitting
of MIDI interfaces to various older roll-playing Instruments. I need
to find out who can supply the MIDI interface hardware to operate a
61-note vacuum operated instrument controlled by means of small, high
speed vacuum solenoids, so the interface hardware needs to have probably
64 DC outputs (a standard digital number).

As I live here in New Zealand, I am unable to find anything like this,
and am hoping that someone/somewhere there in the USA with this
knowledge would be able to help.

Thanks, and Kindest Regards,
Kevin Seay
New Zealand

 [ I asked Kevin for more information about the project:

Hello, Robbie -- In answer to your questions:

1. I do not have the vacuum solenoids yet; could the MIDI interface
vendor supply them?

2. The voltage and current required would need to be supplied by the
MIDI interface; could the interface vendor provide a power supply?

3. I will need to see the instrument owner to be sure, but probably
standard MIDI files will be played.

4. The system is to be installed in a 5-octave (61-note) older type of
vacuum operated roll player organ; I will find you the exact details.

5. And yes, I would also need some way of being able to manage the
input MIDI data -- a MIDI player, as you rightly suggest.

I am a Fully Qualified Electronics Service Tech, who holds an Electrical
Trade Certificate, and a Current Practicing Licence. MIDI is something
that I have not had much to do with, but I can see that this is a great
idea to generate new music for the older machines.

Once again, Thank You so much!

Kindest Regards,
Kevin Seay

 [ The foot-powered reed organ with stops for selecting different voices
 [ is an entertaining instrument when operated by a human performer, but
 [ the player system Kevin describes has no means to automatically vary
 [ the suction nor to control the stops. Does a library of transcribed
 [ organ music exist that would suit the limitations of this organ?
 [ -- Robbie


(Message sent Thu 7 Jul 2022, 06:42:33 GMT, from time zone GMT-0700.)

Key Words in Subject:  61-note, File, MIDI, Organ, Player, Reed, Seek, System

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