Gneutronica is an application for creating and playing back drum tracks to MIDI devices, typically keyboards, drum machines or other sound modules. It provides flexible tempo control allowing for tempo changes at measure boundaries, specification of arbitrary measure length (in beats) and allows for arbitrary placement of notes,

-d device

Specify the device file to which MIDI commands are sent. (e.g. a percussion sound module, or a softsynth.) The default is /dev/snd/midi1.

-i inputdevice

Specify the device file from which MIDI commands are read. (e.g. a MIDI input device of some sort, a keyboard or drum pad, for instance.) Probably something like /dev/snd/MIDIC?D0

-k drumkit

Specify a drumkit file. There are a number of drumkit files included with gneutronica in /usr/local/share/gneutronica/drumkits corresponding to various devices, or you may create your own drumkit files for your particular devices.

-m

Do not maximize the windows at startup. By default, the windows are maximized to occupy the entire screen. (You can switch between the two windows with alt-tab, or whatever method your window manager provides for this purpose.)