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Notes:

The keyboard has 16-note (maxi- mum) polyphonic sound. This means that you can play up to 16 different notes at the same time with most of the keyboard’s preset tones. Some of the keyboard’s preset tones, however, are capable of only 8-note polyphony.

Most tones on this keyboard have been recorded and processed using a technique called digital sampling. To ensure a high level of tonal qual- ity, samples are taken in the low, mid, and high ranges and are then combined to sound amazingly close to the originals. You might notice very slight differences in volume or sound quality for some tones when you play them at different positions on the keyboard. This is an unavoid- able result of multiple sampling and is not a malfunction.

Some sound effect tones, such as PERCUSSION (No. 99), do not fol- low the musical scale when played, but change effect as you play them in different octaves on the keyboard.

Selecting/Playing a Preset Tone

1.Press TONE. TONE and the current tone’s number appears.

Note: Each time you turn the key- board on, it automatically selects the tone PIANO 1 (No. 00).

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2.To play a different tone, choose a preset tone from the 100 TONES list and enter its two-digit number on the keypad. As you press the keys, the selected digits appear.

Or, you can use + or to move to the next higher or lower numbered tone.

Notes:

Precede a single-digit number with a 0. For example, to select ELEC PIANO 1 (No. 04), press 0 4.

If you enter an incorrect first digit, press TONE to clear your entry, then enter the correct digit.

3.Play the keyboard to hear the selected tone and adjust MAIN VOL- UME to the desired level.

4.To select a different tone, repeat Steps 1 and 2.

Keyboard Split Tones

The preset tones numbered 90 through 96 on your keyboard let you automati- cally play two different musical instru- ments or sound effects independently on opposite sides of the keyboard.

The instrument listed first in the tone’s name plays on the left half of the key- board (below middle C). The instrument listed next plays on the right half of the keyboard (above middle C). For exam- ple, BS/PNO (No. 90) plays a bass tone on the left half of the keyboard and a pi- ano tone on the right.

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Optimus MD-1150 owner manual Selecting/Playing a Preset Tone, Keyboard Split Tones