Useful in Step Edit Mode when sequencing phrases in Note-On Mode.

Scroll to the bar number where you want to commence your note duration.

Press Over Dub and hit the relevant pad.

Calculate the exact Duration value to type in to the D field on the MPC based on the following calculation.

MPC 2500 has 96 Parts per Quarter Note. Therefore, the Duration of 1 beat = 96

for signatures of 4/4

1 bar = 96 x 4     D= 384

2 bars = 96 x 8   D = 768

3 bars = 96 x 12  D = 1152

4 bars = 96 x 16  D = 1536

…

8 bars = 96 x 32  D = 3072

16 bars = 96 x 64 D = 6144

Hope this is useful. I couldn’t find any info out there so here it is.

-MC-

Sometimes certain events are not activated or heard when starting playback after the start point in your project. This can be frustrating at the editing stage when you want to preview changes.

Logic has a function to analyze your project and locate events before the playback point so that they are active when you press play mid-way through a project.

From the Toolbar, choose: Settings > MIDI and click on the Chase Tab

In the list, check any event types that you want to hear when you press play. Most of them are self explanatory.

The most common ones that you may want to enable and maybe need a little more explanation are Notes and Chase on Cycle Jump.

Notes: Plays any notes due to start playing at the playback start point.

• Sustained: Will play any notes that are still playing at the playback start point, due to a sustained pedal event.
• In ‘No Transpose’ Instrument Channel Strips: Instrument Channel Strips such as those containing drums can be assigned a No Transpose status in the Inspector. This is a playback parameter which would be ignored if the region was started mid-way through.* You will want to turn this off if you are triggering drum loops from an external sampler mid-way through a region, otherwise the loop will be triggered at the wrong point and out of sync until the next trigger note.(The No Transpose parameter prevents transposition by the Region Playback Parameter which is usually not desirable for drums)

Chase on Cycle Jump: Scans for and sends all event types if the cycle start and end points fall across regions

• Notes: Limits jump scan to Note events only.
   
• Send full MIDI Reset before Chasing: All MIDI devices are reset to their defaults before chasing.

-MC-

The Pickup Clock function has been described here. 

Here’s a handy real-time arrange application of this function for dropping in regions or notes right on the Song Position the Line (SPL) while in cycle mode or normal play mode.

1) In the Arrange Area select a region and press the space bar to play.

2) A little further along the time line activate your Pickup Clock Key Command or click on the Pickup Clock Shortcut icon in the Toolbar. (Control Click the Toolbar area and click on Customize toolbar to add new icons). 

3) The selected region jumps to the point of the SPL.

4) You could get some really creative grooves happening by applying this function to individual notes in Cycle Mode while in the Piano Roll Editor. (You might want to slow the tempo to get more precise placement.)

5) It’s cool because the Pickup Clock overrides your current Quantization Grid Value.

-MC-