так то всё залипательно . а темп походу по БПМ не выставить. только приблизительно 
● Tap tempo
You can set the tempo of the slice pattern with the timing at which you press the pedal switch.
The tempo can’t be set using the SL-2 if this device is receiving MIDI clocks from an external device,
since this device is synchronized with the tempo of the external device.
Hold down the pedal switch for at least two seconds (the CHECK indicator blinks red/green).
Press the pedal switch at quarter-note intervals in synchronization with the tempo of the song.
You can use the [TEMPO] knob to control the level of the effect sound.
Hold down the pedal switch for at least two seconds to complete the setting.