202 • The DEFAULT CHAN field: Each track within a sequence must be assigned to one of the 64 midi channels. If none is selected, a default channel is automatically inserted by the MPC60. This field determines which channel is automatically inserted when a new track is selected. This is actually two fields: the channel number (1 - 16), and the output jack selection (A, B, C, or D). • The SPECIAL SUSTAIN PEDAL PROCESSING field: This is a choice field with 2 options: ON and OFF. The purpose of this field is to selectively defeat the MPC60's special processing of sustain pedal messages, explained below. In all other sequencers, sustain pedal messages (midi controller 64) are recorded as received into the sequence along with the notes. This presents the following problems: 1. If you start playing a sequence from a specific point at which the sustain pedal is held, but which is after the point at which it was pressed, the notes will not be sustained because the "sustain pedal on" message has not been recognized. 2. If you delete or erase a section of the sequence which contained a "sustain pedal off" message, all notes after that location will be sustained. 3. If you play 2 or more tracks into the same midi output channel and only one track has sustain pedal information, the notes on the other tracks will also be sustained. 4. If you merge a track with sustain pedal information into a track without sustain pedal information, all notes on the resultant track will be sustained. 5. If you overdub notes into a track containing sustain pedal information, the new notes will be sustained. The MPC60 eliminates these problems by specially processing the sustain pedal messages. When the MPC60 receives a "sustain pedal on" message during record, it does NOT record it. Instead, any notes which are currently pressed are internally "held down", even after they are released, until a "sustain pedal off message is received. The result is that the individual durations of notes are lengthened, so unwanted transferring of sustain information to other notes on the same midi channel is impossible. This has the added advantage of allowing you to individually adjust durations of sustained notes in Step Edit. There are some situations in which this special feature is undesirable: 1. On some synthesizers, this special sustain method will cause the synthesizer to ignore any new notes played after
Section 9: Midi functions 203 all available voices are used, because the synthesizer "thinks" the keys are still held. 2. Some synthesizers have the ability to use midi controller 64 for other purposes than sustain, so it is desirable to record it into the sequence. For these reasons, the MPC60's special sustain processing may be defeated. To defeat this special feature and record midi sustain messages (controller 64) into sequences, set the SPECIAL SUSTAIN PEDAL PROCESSING field to OFF. Normally, keep this field set to ON. • SOFT KEY 1 - : Pressing this soft key has exactly the same effect as selecting option 4 from the MIDI screen- it turns all notes off on all midi channels.