PSChord Ver 0.90 Accompaniament Compiler for the Yamaha PSS-480 Copyright (c) 1990 David Rutkowski PsChord is simple compiler which allows you to enter chord progressions as text files which are then sent to the PSS-480's chord banks. This allows a much more precise entry of accompaniaments, plus documents the chordal structure as a basis for improvisation, etc. Any editor which produces pure ASCII files (PC-Write, Qedit, etc.) can be used to create the text files. I am releasing this program as FREEWARE. You may do whatever you like with this program except sell it. I retain all rights to the program and assume no liability for its use. The text file representing the chords of a song begins with the line: style : N tempo : N orch : N where "N" is a number specifying the style, tempo, etc. For example: style : 11 tempo : 132 orch : rbco This specifies style 11 (TECHNO ROCK 1) at a tempo of 132 beats per minute with an instrumentation of rhythm, bass, and chords and orchestra. Chords are represented in the form: N-Rchord, where N is the number of beats to play the chord, R is the root, and chord is the chord name. For example, 4-CM is a C major chord to be played for 4 beats and 6-F#m7 is an F-sharp minor 7th chord to be played for six beats. This is a chart of the available chords and how they are represented in a PsChord text file: 旼컴컴컴컴컴컴컴쩡컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴쩡컴컴컴컴컴컴컴� � chord � chord � example � � symbol � name � � 쳐컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴탠컴컴컴컴컴컴컴� � M � Major � 4-CM � � m � minor � 2-Fm � � 7 � 7th � 1-Eb7 � � m7 � minor 7th � 12-G#m7 � � M7 � Major 7th � 4-CM7 � � mM7 � Major 7th diminished 3rd � 2-BbmM7 � � m7-5 � minor 7th diminished 5th � 2-Cm7-5 � � 7SUS4 � 7th SUSPENDED 4th � 5-F7SUS4 � � aug � augmented � 2-D#aug � � dim � diminished � 2-Dbdim � � 6 � 6th � 24-C6 � � m6 � minor 6th � 3-Gm6 � � 7-5 � 7th diminished 5th � 1-E7-5 � 읕컴컴컴컴컴컴컴좔컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴좔컴컴컴컴컴컴컴� In addition to chords, PsChord text files contain information for Rhythm fills, orchestration, and style changes. These are represented as follows: N-Rf1 N-Rf2 N-Rf3 N-Rending (fill for N beats) 0-S34 (change to style 34) 0-Orbco (select rhythm, bass, chord, orchestra) Please see the included sample files with the .CHD extension (esp. FIFTIES.CHD) for examples of how PsChord text files represent songs. NOTE: the limit for chord sequences in the PSS-480 is about 96 steps. Chords, rhythm/orchestra change and fills each take one step. If this limit is surpassed, the chord bank will be erratic when played (too fast, etc). If you want to do complex accompaniments, it is possible to "segue" from one bank to another by pressing a second chord banks number shortly (less than a measure) before the desired changeover point. Without dropping a beat, the second bank will take over at the beginning of the next measure. MPU-401 configuration: If your MPU-401 is configured in a non-standard way (the standard is IRQ = 2 and Pord address = 330H), you can either indicate the non standard elements on the command line when invoking PSChord with command line switches: PSChord /i3 /a338 (IRQ=3, Address=338H) or you can specify the non-standard elements in the configuration file PSS.CFG in the format irq = 3 address = 338 Please look at the included PSS.CFG file for more information.