Has anybody any numerical data on how the force of a simple "board" pneumatic varies with the opening? I've derived an equation, but it's fairly complex and I'd sure like to check it with actual measured numbers. This data is needed to describe the effect of the hammer-lift "Soft Pedal" in a grand p...

•> > Date: Mon, 8 Apr 96 06:52:32 EDT > From: neilson@nando.net (neilson) > To: rolls@foxtail.com > > Subject: Re: Automatic Music Digest 96.04.07 > > Mark Fontana has given us his roll-editing thesis proposal, and Jody > has suggested a CO2 laser as the output device. I've always wondered > if the ...

> Would it be practical to sample the _touch_ of a 9' Steinway, and use > feedback to a motor on each key of the synth keyboard to simulate that > touch? "Motor" in this case would be a voice coil, or some other > solenoid form. A touch-feedback system like this has been developed at Stanford CCRMA ...

In a message dated 96-06-04 02:22:06 EDT, Joyce Brite writes: > One idea referred to stands out in my mind, "historic restoration." > Exactly, what is it? Is historic restoration the way the factory > designed and manufactured the item, or the way people actually used it? [ snip > #2 - In 1974, the ...

•Date: 4 Jun 1996 17:01:00 GMT From: e9426050@stud2.tuwien.ac.at (e9426050) Organization: Vienna University of Technology, Austria Newsgroups: rec.music.makers.piano •A few weeks ago I bought a CD called "Vladimir Horowitz 1926 - Welte Mignon". When I heard the CD for the first time I wondered how c...

Greetings to all: My name is Laurent Coray, I've just joined the Automatic Music Digest mailing list. Born and raised in Switzerland, I completed college in Oregon, in electrical engineering. I've established myself in the Portland area for the last 13 years. Because for my inclinations for music an...

Ever since I pinned my first disk for a music box, I have thought it a wonderful idea to be able to use an independent player for a music box by which the instrument can be played manually or through other means. This requires that the star wheels be rotated smoothly and gently at approximately the ...

One compromize to preserve as much orginality as possible, regarding to those dangerous open mercury switchs would be to replace them with closed mercury switches. (It is very strange that someone even THOUGHT of making the mercury switches open. What if someone turned the device upside down...?) On...

Craig Brougher seems exasperated with the discussion of alternative schemes to control loudness and/or expression, as implied in this note which preceded the fine technical articles he sent today: > Date: Fri, 30 Aug 96 14:15:33 UT > From: "Craig Brougher" > To: "Automatic Music Mailing List" > Subj...

After reading the latest and greatest way to modify a reproducer for soft playing with expression (Forget the fact that all D/A's have a "Soft" position), Why not go whole hog and just tear out the expression box underneath, because you won't need it anymore. Here is the latest device. Bore a 1" hol...

•Pete Knowbloch asks about measuring the leakage of a stack: > The only place that I can find in The ORCHESTRATION BUILDER'S MANUAL > that references stack leakage is on page 201 (Appendix G). Using > the Bubble Jar to read differences across a player stack (2nd Way). If you will check on page 198 o...

Hi Jody: I'm the builder of MIDI-controlled Fairground Organs. I've been on you automatic music forum for a while now. Yesterday I was organizing my files and came across your introduction way back in May 95. I re-read it and realized that you seem to be knowledgeable with MIDI programming and might...

Al Menashe recently wrote: > I saw an interesting item at an auction here in Portland. It was a > Player piano with a phonograph built it. I don’t recall the brand, > but it was American made. Could it have been a "Standard Playerpiano [sic] Phonograph"? In the book "Player Piano Treasury" by Harvey...

I'm trying to see what is available in the market to "read" music box discs -- I found a company which has a fiber optic photoelectric sensor. I will need one amp and one fiber per track. The amplifiers are $119.00 and each fiber optic will be $40.00 to $77.00 depending on the required fiber unit. (...

Troy Taylor wrote: > Specifically I am trying to get more information about a Melville > Clark player piano that my father restored that has an unusual dual > tracker-bar that enables it to play 58, 65, and 88 note rolls, with > a lever to control which set of holes are in use. The Apollo Grand play...

[ Editor's note: The following article was forwarded to us by Claus, [ but is indexed seperately in Digest header. In article , Christopher Weare wrote: > > AND THAT'S THE KEY!... "A SINGLE INSTRUMENT" > > > > AFTER ALL THIS DISCUSSION, I STILL CAN NOT FATHOM HOW A DEVICE (BEING > > HARDWARE/SOFTWA...

As an antidote to the escalating cost of quality disk boxes, I have once again acquired a Fisher Price disk box of astonishing simplicity and robustness. I did not inquire if it required disassembly and packing before I transported it home from the garage sale (three doors north), but I did remove t...

[ W/R/T Dan Wilson's comments on this topic in digest 961025 ] Hi MMD-readers, concerning piano rolls to MIDI coding it must be avoided to mix up two fully different subjects. One is the musical information which the rolls contain. The other is how a reproducing piano is able to convert this informa...

I need to get my two cents worth in here. Roll (and organ book) editing is an art, at least in part to the fact that the instrument has inherent time delays in its mechanical components. MIDI encodes the time the sound _STARTS_ (and ends). I'm not real familiar with pneumatic pianos, but I can attes...

I'm going to mention something that all musical box fans know but that player-piano people (like me) learn only reluctantly. When visiting your friends who have musical boxes, DO NOT TOUCH the boxes without express and separate permission for each box. Some musical boxes can be damaged by incorrectl...