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101

Sending “pedal off” data

So far, we’ve only discussed sending “pedal on” data. That

is, data which is sent when you press down on the foot

switch. Your Express interface can also send “pedal off”

data when you release the foot switch. In fact, you can

program the list of data for both pedal on and pedal off

data. Each time you press down, you send a pedal on

event, and when you release you send a pedal off event.

Keep in mind, however, that this could be a little awkward

because––depending on what you are doing––you may be

required to hold your foot down for a while before sending

the next event.

To program pedal off data, add it to the Pedal Off column

as discussed in the previous section, “Setting up the foot

switch output data”. The Pedal Off list can have up to 47

bytes of pedal off data, just like the pedal on data, giving

you a total of 94 bytes worth of foot switch data.

Grouping data

You can set up the list so that the pedal sends several MIDI

events all at once. After you create the ﬁrst event, press on

the arrow to its right to add a second event to the group.

You can continue to add more events to the group by

clicking the right-hand arrow of any event in the group.

The new event you insert will always be inserted just below

the arrow you press on.

Figure 6-46: An example of grouping data events. In this example, the Pedal On

group, a C major triad (notes C-E-G), is sent when the pedal is pressed a ﬁrst

time. When the pedal is pressed again, Note-Off events are sent to silence the

chord. (Note-off events are denoted by a grayed out note icon.) The status bar

above the list indicates 18 bytes worth of pedal on data.

Sending data with the foot switch

Once you have made the preparations described in the

previous section, you are ready to use the foot switch. Just

press it and release it. With each press, it will send out a

group of MIDI events. When you press it again, it sends

Click here to add another

event to the group.