Arperk and Randrum

Arperk and Randrum are the first series of applications of the music project ‘Leitvox’.

Arperk is a dynamic arpeggeator composed of three interconnected, beat-synchronized engines that generate MIDI notes—and each engine has its own independent sequencer. Individual outputs can be routed to different internal and external destinations. With Arperk, one engine could send MIDI information to a soft synthesizer (like NI Absynth), the second one might transmit to your EXS24 sampler in Logic Pro, and the third one (via a MIDI interface) could head for your Roland Juno hard synthesizer. Arperk’s vintage sequencing behavior is ideal for live performance, and also is an efficient, easy way to make ultra-tight, mega-strong real-time electronic loops.

Randrum is a one-of-a-kind, sample-based drum machine that lets you create beats with rich random timbres. Randrum features a 32-step sequencer that lets you adjust the gain of each step. Drag a folder with your favorite drum samples, and Randrum randomly decides which sample is assigned to each step. Randrum chooses 32 different samples for every cycle, meaning repetition is practically impossible. Randrum also features a multi-mode internal filter, a stereo spread function, and a internal VST plug-in component—so you can load any VST FX into the drum machine.

These simple-easy to use music applications were designed by Christian Cooley as stand-alone and completely programmed in Max/MSP.

He has been designing Max/MSP patches for a while, and he wanted to share them with musicians over the Internet. Needless to say not all musicians are familiar with Max/MSP, therefore he decided to make a couple of stand-alones and give the opportunity to those who are unfamiliar with Max/MSP programming to play with friendly looking applications.

The main challenge was to make the patches with a professional ‘look’. So he spent time designing the interfaces and creating the applications as friendly as possible.

If the purpose of Max/MSP programmers is to share their patches, Christian Cooley wants to encourage them to take a little time and think about the look of their work in Max. He believes that interface design potentially helps to increase downloads of patches and applications. Consequently making the patches ‘prettier’ will definitely attract people to the Max/MSP world.

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