Georg Brandt

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Georg Brandt
Georg Brandt - 1.jpg
Born
Birth Place Germany
Nationality German   Germany.svg
Aliases Georg Brand, G.Brandt

Georg Brandt is a German composer. At age 13, he acquired a Commodore VIC-20 and learned BASIC and the basics of machine language. After one and a half years, he switched to the Commodore 64. In 1986, he wrote several demo songs and a drum sequencer which were published in the magazine 64'er and started scoring games. He programmed two games himself and also wrote the Magic Bytes jingle.

Music Development

Commodore 64

At Rainbow Arts, Brandt used Chris Hülsbeck's The Final Musicplayer in conjunction with his own sound effect and sample routines. His last game used RoMuzak V6.3. Apart from that, he said:

In 1986 I wrote my own music engine in 6502 assembler driving the 3 SID channels (i.e. 3 tracks), an optional virtual drum channel (4th track) and an additional sample playback channel (5th track). The engine was IRQ driven to make it in run in parallel to the game play.

The notes were stored in memory in a piano roll style. A simple memory hex editor was sufficient to view and create the song data. Each tracks melody line was described by note height (chromatic note number) and sound type. „Sound type“ was a reference to an internal predefined instrument in my sound engine. I used the note heights byte most significant bit (MSB) to store if the sound was played (meaning “key down”) or in the release phase (meaning “key released”).

Each instrument preset had an ADSR setting, waveform type (rect, sine, triangle, saw), pulse width modulation settings, filter settings and special effects like arpeggios/chords, additional attack noise a.s.o.

The virtual drum channel was routed to a SID channel replacing the melody playing on that channel for the short time the drum sounds were playing.

The sample playback engine simply wrote the sample wave data interrupt driven to the SIDs main volume register. The fact that one could playback a sample like this was rather a side effect and not intended or documented in the SIDs chip design. The samples were created from different audio sources using a DIY digitizer board.

For composing I used a simple JVC Keyboard and then transferred those musical ideas directly to the piano roll style tracks with a simple hex editor. Later I directly composed inside the hex editor.


I wrote music for Magic Bytes, Rainbow Arts and the German C64er magazine.

Gameography

Released Title Sample
1986-12-?? Werner - mach hin! (C64)
1987-10-?? In 80 Days Around the World (C64)
1987-10-?? Street Gang (C64) Title Song by Christoph Bergmann.
1988-02-?? Vampire's Empire (C64)
1988-0?-?? The Paranoia Complex (C64)
1988-11-?? Mini-Golf (C64)
1988-??-?? Vampire's Empire (AMI)
1989-05-?? Beam (C64)
1989-05-?? Tom & Jerry: Hunting High and Low (C64)
1989-08-?? Börsenfieber (C64)
1989-12-?? Tom & Jerry 2 (C64)
1990-04-?? U.S.S. John Young (C64)
1990-??-?? Mindbender (C64)

Picture Gallery

Links