learning at the elbow of the internet

  Assign To Exclusive Group: 6

This is an entirely new subject. I can build my own drum machine. It doesn’t have to play drums.

Logic Pro Drum Machine Designer overview — Apple Support

Drum Machine Designer is not a plug-in, although it can be inserted into instrument channel strips. It is a track-based meta-instrument using a track stack, which combines a master track and a number of subtracks. Each track has a corresponding channel strip.

Use Logic Pro Drum Machine Designer pad controls — Apple Support

Move your pointer over, or click, the icon or pad background of any of the 16 pads shown on each grid page to access pad parameters and to view Kit Piece Tone and Effect Smart Controls. Use the pad controls bar below the grid to access editing options and to navigate between pad pages.

Use Logic Pro Drum Machine Designer pad controls — Apple Support

Exclusive Group: Choose a group for the pad. You can assign multiple pads to the same group. As soon as one drum sound in the group is triggered, all other sounds in that same group are stopped. For example, you could group three pads with open, semi-closed, and closed hi-hat sounds. Only one of these sounds can be played at a time, mirroring the behavior of real hi-hats.

  Set Selection End To Previous Transient    ←

Shorten the current selection in the audio file to the left.

Select audio with transient markers in Logic Pro — Apple Support

Selection End to Previous Transient: The selection end is shortened to the left, up to the preceding transient marker.

  Go to Marker Number 6    𝍖6

Move the playhead (and display) to marker number 6. These commands are assigned to the extended keyboard numeric keypad.

I would interested in trying something like “Go to marker by name” where you can search by title. The “Go to marker n” where you type in a number costs an extra couple of key presses, but would free up a numeric keypad.

In a significantly long or complicated project keeping the Marker List window open would seem to be a better approach.

Navigate using markers in Logic Pro — Apple Support

You can navigate through your project using markers. This is useful when you want to quickly jump to, and edit, regions or events at a specific position in your project, for example.

  Save Pattern    ⇧⌘P

Save the pattern. The command is located in the tool (gear) menu in the Step Sequence. A whole new (old) place to explore.

My first MIDI software (after my CZ Editor) was Opcode Vision — a MIDI sequencer. This modern take on the step sequencer (every pattern is a step sequencer? recursion is us)

Logic Pro Step Sequencer overview — Apple Support

Step Sequencer patterns are contained in pattern regions (in the Tracks area) and pattern cells (in the Live Loops grid). Pattern regions and cells are used primarily on MIDI-based (software instrument, external instrument, and Drummer) tracks. Pattern regions (but not pattern cells) can also be used on audio tracks to automate effect and channel strip parameters. A project can contain any number of pattern regions or cells.

Each pattern region or cell functions as an independent step sequencer, with its own configuration and settings. You can copy and move pattern regions like other regions in the Tracks area, while pattern cells can be copied, moved, triggered, and queued like other Live Loops cells. You can modify pattern region and cell parameters in the Region inspector or Cell inspector, respectively.