Yamaha PSR-550 Owner's Manual - Page 134

Harmony/Echo Type List Category Harmony Echo Tremolo Trill Type Duet 1+5 Country Trio Block 4Way Close1 4Way Close2 4Way Open Octave Strum Echo 1/4 3 Echo 1/6 Echo 1/8 3 Echo 1/12 Tremolo 1/8 3 Tremolo 1/12 Tremolo 1/16 Tremolo 1/32 3 Trill 1/12 Trill 1/16 3 Trill 1/24 Trill 1/32 Description An extra note is added to the note played on the keyboard to produce duet type harmony. A parallel voice is produced a fifth above the note played on the keyboard. One note is added above the note played on the keyboard for a country-style harmony feel. Two notes are added below the note played on the keyboard for three-part harmony. Three or four notes are added to the note played on the keyboard to produce four or fivenote chords. Three harmony notes are generated to produce a four-note chord. Similar to the preceding type, but depending on the chords played this type will sometimes produce a more colorful sound. Four-note chords with open voice (large intervals between the notes). The result is a very "open" sound. Since the harmony notes can be as much as two octaves below the note played on the keyboard, avoid playing in the lower registers. One note is added an octave below the note played on the keyboard. The notes and assignments are the same as in the Block type, but the notes are arpeggiated. An echo effect is applied to the note played on the keyboard at the currently set tempo. A tremolo effect is applied to the note played on the keyboard at the currently set tempo. Two notes played on the keyboard are played alternately at the currently set tempo. 134 142