Yamaha RY30 Rhythm Programmer (1991) Owner's Manual

Here Yamaha RY30 Owner's Manual

Alesis SR-16 (1990) Drum Machine

No doubt the SR-16 is a powerful drum machine, but ultimately it also sounds like a drum machine. If you need some drums to accompany your keyboard or guitar playing, for example, the SR-16 has been the go-to drum machine for many years. But all those bumper stickers about drum machines having no soul just might be directed at the SR-16. It may be a great tool for musicians but in the studio its sound just can't beat the real deal - or loops and more modern drum & percussion instruments and software.

For serious programmers and those who want to use it as a sound module, the SR-16 provides comprehensive MIDI programming and MIDI implementation. In addition to more than 200 drum and rhythm samples (both in dry form or with reverb), a Dynamic Articulation feature enables a drum's tone to change, depending on how hard it's hit. Comes with fifty preset rhythm patterns (played in by top studio drummers), each with an A and B variation, plus A and B fill, for a total of four different rhythms in each pattern. Of course, you can create and save your own customized patterns and songs. Also includes four outputs, twelve velocity-sensitive pads, 16-voice polyphony, sample/DAC bit resolution 16/18, sound stacking, step editing and a 20-255BPM tempo range.


Video Manual by Alesis Studio Electronics

BOSS DR-110 Dr. Rhythm Graphic (1983)

The Boss Doctor Rhythm DR-110 Graphic is a drum machine, produced by the Boss product division of the Japanese Roland Corporation in 1983.

Boss were better known for producing electric guitar accessories such as effects pedals, and the DR-110 is similarly small and lightweight in size (190×110×30mm, and only 450g), and like most Boss equipment, could be run from a 9V d.c. supply or batteries. In 1980, Roland introduced their first simple and affordable drum machine to bear the BOSS Dr. Rhythm brand, the DR-55, offering four sounds, an Accent and a limited number of programmable patterns. It was followed by the Dr. Rhythm Graphic (DR-110) in 1983, which offers a wider selection of sounds, preset patterns, an increased number of programmable patterns and the ability to chain patterns together to form songs. The simple step programming of the first Dr. Rhythm, with alternating button presses for notes and rests, is augmented by an LCD with a grid showing the individual notes in the current pattern. In addition to step programming there is also a "tap write" programming mode, albeit without a metronome click for timekeeping.

The sounds are Kick, Snare, Closed Hi-Hat, Open Hi-Hat, Cymbal and Clap. The sounds are totally analog, and sound crisp and punchy, thanks to tone generation circuitry that is more sophisticated than the Roland TR-606 Drumatix. A balance knob alters the level of the Kick, Snare and Clap relative to the other sounds, while an accent knob controls the amount of emphasis applied to accented steps. There is also a volume knob, which controls the overall level of both the main and headphone outputs. The main output is mono, but has an unusual feature whereby plugging in a suitable wired lead with a stereo jack plug allows for the feeding in of another signal to be mixed with the drum sounds. Another socket provides for a trigger signal, emitting a pulse for every accented step in a pattern.

The patterns are organized into four banks of eight patterns each. Banks C and D are the presets, while banks A and B are programmable. Each pattern can be switched between 12 or 16 steps, for a 3/4 or 4/4 time signature. Two songs can be programmed, each containing a maximum of 128 bars.

At the time of writing, the Dr. Rhythm Graphic is relatively affordable compared to similar machines such as the  Roland TR-606 Drumatix, and are usually found in good condition thanks to the padded carry case that they came with. On the downside, there are no outputs or tone controls for the individual sounds, but a number of well documented modifications can be found on the Internet that add these features.