About the acoustic of an Hammond Organ
As you may read in the presentation of the Hammond XB-2, it was already very difficult for the Hammond Suzuki engenieers to obtain a good digital translation to the famous Hammond B-3 groovy sound
After having discovered the power of the Roland Sound Canvas SC-55 thanks to the SCPOP and the moral support of , I tried to make the same job to obtain a Hammond sound.
Basically , a Hammond sound is an electronic sound , and it would have been achieved without many problems. The famous drawbars are representing the registrations as shown on the image. Those indications have been coming from the well known dimensions of the pipe in the original church organ. I play one single note like a C4 and pull all the drowbars
jd barker el cuarto monom4a upd

Every drawbar does have16 different volume position , between 0 and 8 . The drawbars give the possibility to create an incredible range of sounds (253.000.000 ) , wich are most commonly raked into 4 main Family:

The sound of a Hammond like my XB-2 is not only characterised by a oscillation like the one obtained in the Sound Canvas Library by an Ocarina but also by some noises and clicks so that I had to use some less used sounds of the Sound Canvas like the F1 Key CLick and the Bottle Blow (wich already was used by Raffaelle and Filippo)

The organ has also a pescussive sound wich is similate to a very high marimba . With a played C3 , the Hammond may add a very short Marimba at C5 or G5. Together with a Ocarina , a F1 and a Bottle Blow , it gives a strange sound , wich after filtering thru CanvasMan gives a jazzy sound like in the very known tune of Jimmy Smith called The Cat . I recorded this tune in 1993 but it was then only possible to play it with the Hammond XB-2 wich is a Midi Hammond . The original sound of the Sound Canvas was too poor to give a satisfying result. Now , with the SysEx , it gives some better results for jazzy purposes.

The major problem of the SC-55 is te voice limitation to 28 (happy users of SC-88 does not have such a limitation indeed!). If you listen to this Impossible Sample you'll clearly ear the mess when the 9 drawbars are open and you play together more than 3 sounds. You get frequent note off limitation and the result is not very nice. Due to voice limitations, I had to look for some different sounds as shown in the sound family table below.

Honestly , I didn't really reach the perfection as Raffaelle and Filippo for the Pipe organ , or with the Harpsichord sounds. I just now have some interesting sounds wich are giving a slight impression of Hammond , specially when mixed with other instruments like Rythm or Brass section.
You'll find in the different SysEx into the Hammond Template file for Cakewalk some of the drawbars indications , but feel free to give other names like jazzy , psychedelic , fuzzy ...

After having created the sounds , I gave them to Raffaelle who made a template file to use in Cakewalk, wich contain sysex producing the following sounds:

Jd Barker El Cuarto Monom4a Upd May 2026

To understand "El Cuarto Monom4a," you must understand The Fourth Monkey (4MK). The series follows Detective Sam Porter as he hunts a serial killer known as "The 4MK Killer" (Four Monkey Killer), whose motto is based on the Japanese proverb "See no evil, hear no evil, speak no evil, do no evil."

The books are famous for their unconventional structure, including:

It is in this last category that the "Monom4a" element comes to life. jd barker el cuarto monom4a upd

| Artist | Track | Format | Similarity | |--------|-------|--------|-------------| | J. Barker | "Rotor" | Stereo MP3 | Rhythmic structure, but stereo | | S. Uribe | "El Cuarto" | Stereo FLAC | Title and ambient mood | | Unknown | "JD Barker – El Cuarto (Mono M4A)" | Mono M4A | Hypothetical hybrid |

This paper presents the fourth major revision (“El Cuarto”) of the Mono M4A specification update (monom4a_upd). We analyze bitrate reduction strategies, psychoacoustic model improvements, and latency trade-offs for mono speech and low-music content. Experimental results show a 22% bitrate decrease over AAC-LC mono at equivalent PEAQ scores. To understand "El Cuarto Monom4a," you must understand

The story is set in Chicago and revolves around the hunt for a serial killer known as the "Four Monkey Killer" (4MK). The killer is infamous for taunting the police and the public with a twisted take on the traditional three wise monkeys maxim: "See no evil, hear no evil, speak no evil." The killer adds a fourth monkey: "Do no evil," though his interpretation is horrifically distorted.

The plot kicks into high gear when the killer is accidentally killed in a traffic accident. Detective Sam Porter, who has been chasing 4MK for years, believes the case is finally closed—until he finds a diary on the killer's body. The diary reveals that the killer has one final victim held captive, and Porter must solve the clues left behind to save the victim before it is too late. It is in this last category that the

Since MPEG-4 Part 3 (AAC), mono audio has been under-optimized, typically derived from stereo downmixes. The monom4a_upd addresses this by redesigning the temporal noise shaping (TNS) and joint coding for single-channel inputs.

Combining the elements, the most plausible origin is:

A user on a Latin American music forum (e.g., Taringa!, Foros Perú, or a Soulseek room) downloaded a J. Barker track, misnamed it as "JD Barker," added the descriptive phrase "El Cuarto" (possibly the actual title or a reference to the listening environment), converted it to mono M4A for space-saving, and flagged it as "upd" to indicate a revised upload.

Here you can download some midi files using the Hammond sounds. Feel free to contribute with yours compositions or performances, sending them to or .

C2	G3	C3	C4	G4	C5	E5	G5	C6
16"	5"1/3	8"	4"	2"2/3	2"	1"3/5	1"1/3	1"

Walking	performed by S. Rigot
Piece for Hammond	performed by F. Borsari
Round Midnight	performed by S. Rigot
Georgia	performed by R. Diodati
Borgan Lues	performed by B. Lewis