With built in arpeggiators, there are scores of different design variations. There are also different places they can be placed in the data flow and the location greatly affects what can be done with them.
Some instruments, like those from Yamaha, send arpeggiated notes out through MIDI. These instruments are very flexible and allow the arpeggiation to be played in unison with other instruments. Some very flexible instruments even allow for sending data out on two channels - the unmodified key data as played on one channel, and the arpeggiated notes on a separate channel which is selectable or can be disabled. This latter design is the ultimate in flexibility.
Other instruments only send the arpeggiated data internally from keyboard to synthesis engine, or from MIDI in to synthesis engine, but don't transmit the arpeggiated notes. This design is less flexible for studio work, and for situations where MIDI notes are externally modified under the control of a sequencer, DAW, or MIDI processors.
I read the manual but could not determine which design the MiniBrute uses.
Are the MiniBrute's arpeggiated notes transmitted out through MIDI? And if so, if coming back through a sequencer when Local Off is enabled in the instrument (assuming it is supported), are the new arpeggiated notes played once (good) or do they cause cascading new arpeggios (not as good)?