Moog-music Slim Phatty User Manual download pdf (Page 57)

Page 58

Slim Phatty User’s Manual - Appendices

Page 59

Slim Phatty User’s Manual - Appendices

Appendix B - Arpeggiator Clock Source

There are three Arpeggiator Clock Sources: Internal (INT), LFO, and MIDI Clock (MIDI). Detailed

descriptions of these clock source options appears below.

INTERNAL:

When the Arpeggiator Clock Source is set to INTERNAL, the Arpeggiator runs at the internal Arpeggiator

Clock rate. This defaults to the clock rate saved in the currently-active preset. You can change the internal

Arpeggiator clock rate by using the MODULATION control, or by Tap Tempo, or by sending a MIDI CC#90

command with a value in the range 0-127. While the arpeggiator is running, you can change its internal

clock rate by selecting the LFO RATE panel button and adjusting the MODULATION control. The lower

line of the Little Phatty LCD will display ‘ARP XXX BPM’, showing the tempo of the arpeggiator clock. Note

that due to the shared controls, you cannot use the MODULATION control to adjust the internal LFO

Rate while the Arpeggiator is running in this mode. However, you can still adjust the LFO Rate remotely by

sending a MIDI CC#3 command.

When the Tap Tempo function is engaged, the Arpeggiator Clock is adjusted directly by tapping the LFO

RATE button. You can also adjust the Arpeggiator Clock using the MODULATION control (provided that

prior to engaging Tap Tempo, the MODULATION control was set to adjust the Modulation Rate and not

the Amount). Adjusting the Arpeggiator Clock in this manner will override the rate set by Tap Tempo. Note

that the LFO RATE panel button will continue to blink, indicating that Tap Tempo is still active - you can

tap in a new Arpeggiator Clock at any time. To disengage Tap Tempo mode, press and hold the LFO RATE

button. The Arpeggiator Clock will remain at the last rate you selected.

LFO:

When the Arpeggiator Clock Source is set to LFO, the Arpeggiator rate is dened as one whole note

per LFO cycle. Unlike Internal mode, you can adjust the internal LFO Rate directly from the panel while

the Arpeggiator is running. The Arpeggiator Clock Divider (CLK DIV) determines how many notes the

Arpeggiator plays per LFO cycle. Note that you can still choose either Internal or MIDI Sync to be the LFO

Clock source, independent of this setting. The Arpeggiator will follow the LFO rate in either case.

MIDI:

When the Arpeggiator Clock Source is set to MIDI, the Arpeggiator rate is directly synchronized to

incoming MIDI clock. If there is no MIDI clock signal present, the arpeggiator will not play (and in fact, you

will not hear any notes from the SP keyboard!). The Arpeggiator Clock Divider (CLK DIV) determines how

many notes the Arpeggiator plays per measure.

PERFORMANCE TIPS:

1. When the Arpeggiator Clock Source is set to ‘INT’, you can use the Tap Tempo function

to get clock rates that fall outside the minimum and maximum rates available from the

MODULATION control.

2. When the Arpeggiator Clock Source is set to ‘MIDI’, if the Latch is enabled and a

latched arpeggio pattern is playing, you can stop the MIDI clock and the pattern will stop

playing; when you restart the MIDI clock, the latched pattern is retained and it will resume

playing again.

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Moog-music Slim Phatty User Manual Page 57

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