There are some "power user features" on the PO-35 that I added very late and were never documented in the official online manual. Jakob covered many of these in his excellent tutorial but not all. Here is a complete list (I think 😊):

Secret key combos

record + fx + 1,2,3,4 80/60/40/20 frames per second (choose before rec, low fps = lower quality but longer max length) record + fx + 5 tune mode (after rec): knob A = change sample root key, knob B = change sample bpm record + fx + 6 mix mode (after rec): knob A = adjust noise vs tone mix, knob B = adjust sample volume record + fx + 7 toggle between high pitch range (default) and low pitch range recording modes (before rec) record + fx + 8 turn the recording metronome on/off (only heard when line-out is connected) write + rec + sound + 1-15 copy current sample to another slot fx + sound + 1-15 replace sequenced samples in real time w/o changing anything else (recorded in "edit mode") write + pattern + sound transmits only patterns in active chain (and only samples used by these patterns) sound + bpm press multiple times for various system information (besides battery charge)

In "edit mode"

Hold down a step for a second to copy its settings (sound, pitch, length, parameters). You can now easily copy this exact sound to other steps.

Holding down a step and pressing fx lets you edit all four parameters (pitch/formant-shift/start/speed) for that step.

lets you edit all four parameters (pitch/formant-shift/start/speed) for that step. When you hold down write you can see which steps are using the currently selected sound. (These are also the steps that will be updated when you use write + knobs for automation.)





Other useful info and tips

The last note you played in "performance mode" will be used in "edit mode" to define sound, knob settings, pitch and even note length when placing new triggers on steps.

When holding down record you can see which samples are not in use by any pattern at all and are safe to replace. These buttons are not lit.

you can see which samples are not in use by any pattern at all and are safe to replace. These buttons are not lit. When using pattern + knobs to change key and scale, the change will have effect first when you release the pattern button (practical for live performances). However, key and scale is stored per pattern so this also means (destructively) updating the key and scale for all active patterns in the current pattern chain.

+ knobs to change key and scale, the change will have effect first when you release the button (practical for live performances). However, key and scale is stored per pattern so this also means (destructively) updating the key and scale for all active patterns in the current pattern chain. Even though you can't set a note length longer than 16 steps in "edit mode" you can record longer notes live that stretches over several patterns in a chain (using write + buttons in "performance mode").

+ buttons in "performance mode"). write + sound + buttons can be used to live-record different sounds into a pattern directly.

+ + buttons can be used to live-record different sounds into a pattern directly. To reset a knob to its default value hold down record and turn it.

and turn it. When live recording with write you can hold down record to erase notes.

you can hold down to erase notes. Turn down the "speed" parameter to -127 for full stop. Now you can use the left "start" knob to "scrub" backwards and forwards through the sound instead of having it play by itself. Naturally you can record this too.

Hold down write + pattern when you insert the batteries to restore all patterns and sounds to factory settings. (Warning! You'll lose all your data.)





About backups

When making backups (with write + sound ) use a stereo cable and stereo recording in at least 16-bit 44kHz.

+ ) use a stereo cable and stereo recording in at least 16-bit 44kHz. The signal is very sensitive to noise and distortion so use a good cable and a good audio card.

Avoid too low and (especially) too high recording and playback levels. ( bpm + 11 is a good output level.)

+ is a good output level.) Save as WAV or AIFF. MP3 etc will degrade the signal and may not work at all.

Always test that restoring with record + sound works. It is perfectly safe and won't destroy your data even if there are errors.





Feel free to comment and let me know if there is anything else you wonder.