•I believe I can help Bob Ricco in his quest for a user of his antique radio tube collection. I applaud his reluctance to pitch them; having been involved in radio restoration (before stepping back one more era into mechanical music), I'm very aware of the difficulty of finding a particular old work...

•Hi. Several people have asked me how I replaced the pinblock in that player. This might have not have been the best way, and I hope the piano don't "pop" when pulled to pitch, so here goes. I will have to give Foster & Co. a big fat "F" for the pinblock in that unit. It consisted of nothing but 6" ...

•In reply to the query about tracker bar hole sizes from Tom Griffiths (MMD 11/10/1998):- 31 note rolls are cut with 3mm diameter holes on a 4mm pitch. From my experience with keyless organs, the tracker bar holes appear to be drilled the same size or up about 0.5mm diameter smaller than the holes i...

•Hi Folks, In response to Mike Walter's question about the tempo of his piano roll of "Minstrels," I am in agreement with Robbie's suggestion that you match the speed of the roll to the LP. I'm not so sure about matching the pitch unless it is really off because this may reflect a situation in which...

•I enjoy Cool Edit by Syntrillium for the typical simple tasks with digitized audio. The advertising touts glossy tricks, but the package actually has very well-designed filters (needed for altering pitch and time), as well as an adaptive noise filter which works well for hum and periodic rumble and...

•I compared the two versions of "The Farmer Took Another Load Away!" by merging them into a new file, with one version displaced by a half step pitch. (Yes, it sounds very out-of-tune!) Here's what I found. a. The A-roll version plays for 96 measures, but the QRS 88-note roll plays for 152 measures...

•I would very much like to hear from anyone who could supply me with an actual Mortier 'Flute 8' (counter-melody) rank of pipes. I need 18 pipes in total covering 'C' to 'F' (true pitch) for my 84-key Mortier Orchestrion. I would also be interested in a Mortier Piston (trumpet) rank for the Melody, ...

•I have a set of tuned sleigh bells. They are hung from a metal tube about six feet long. The marked pitch is as follows: F, G, A, A#, B, C, C#, D, E, F, G, A, A#, B, C. I have not verified the pitch, and have no idea where they came from. If anyone is interested please contact me. Fritz Gellerman ...

•In MMD 990913 Allan Merralls wrote about magnetic recording. I am not sure if the Germans used a rotating magnetic head on their audio recorders. The only early application of rotating heads to conventional audio recorders was for varying the length of recording without changing the pitch (or vice ...

•> [ While I was working at the University of Illinois School of Music > [ (as a computer consultant, not a musician or composer), I recall > [ reading about an audio recorder that had a rotating head that > [ made it possible to change playback speed without altering > [ pitch, or conversely change...

•In MMD 990916 Jody asked about an audio recorder that had a rotating head that made it possible to change playback speed without altering pitch, or conversely change pitch without altering playback speed. In the years around 1970 I worked with one of those. The contraption was a 1 ft cube wooden bo...

•Jody, you are right. In 50-Hz countries (which use PAL and SECAM) we scan film at 25 frames per second and accept the 4% shortening and pitch raising. (What would Ralph Nader say about the short measure! :) It is possible to correct the pitch with modern DSP [digital signal processing], or perhaps ...

•Marc Kaufman wrote: > ... This was marketed to the vision-impaired folks so they could > tape lectures at normal speed, then play them back at higher speed > without changing the voice pitch. ... See, for example: > http://sightconnection.site.yahoo.net/sightconnection/plu-331.html The above site i...

•"Tremolo," as defined in professional music dictionaries including "The Harvard Dictionary of Music" by Willi Apel, is the rapid reiteration (or repetition) of the same tone, produced by rapidly reversing the bow on stringed instruments. "Vibrato" is the fluctuation of pitch. Apel admits that while...

•Regarding tremolo and vibrato technical discussions, I think we will probably find that everybody is right about it. Whether a violinist is undulating the pitch with his finger on the string, or a pipe organ is Tremming the melody, I can't imagine vibrato without tremolo and vice versa. It all seem...

•All Reed organ pipes have a vibrating reed which controls the sound produced. The vibrating reed is usually made of soft brass. The vibrating reed is necessarily tuned to approximate in pitch the inner sympathy of the air mass in it's resonator. The length of the vibrating portion of the reed is ch...

•We are in the process of fine tuning an Orchestrone reed crank organ. Is there any way to straighten the reeds without altering their pitch? If not, are the reeds available for sale anywhere? Anyone have ideas on how to test the tone of the reeds when repairing or replacing? Pat Whitlock ...

•1929 Duo-Art belt question: Does anyone out there know the actual specifications, i.e., pitch and length, of the belt for a Duo-Art grand? Mine does not seem to be the right pitch and is noisy. Thanks Jim Moore

•For Sale: 37 metal violin/Gamba pipes, C to C, 8' pitch (not size), 4" to 5" water gage pressure; includes toe board and support rack. All pipes speak, a few could use a little attention. In good condition. $250.00 plus crating and shipping. Four pictures available via e-mail. Please write me at: s...

•In the 1950's the US Army in Germany used standard 60-cycle Hammond organs in the chapels. Since the organs would be low in pitch and overheat on the 50 cycle current, a local firm had been hired to build conversion boxes which consisted of a 50 cycle motor driving a generator that was supposed to ...