lorenzo’s drums

an electroacoustic drumset.


this is a norns script that allows you to manipulate a high-quality drumset composed of many meticulously captured samples from Lorenzo Wood (shared through www.pianobook.co.uk). each drum hit is composed of ~6 samples which are mixed according to the current mic positions (up to three positions) and velocity (interpoalted between two velocities of up to eight layers).




the first time you start you will have to wait for samples to download. once done you can goto PARAMS > choose pattern and choose a pattern. then hit PARAMS> load pattern. then goto the main screen and press K1+K3 to start the pattern.




at the heart of lorenzo’s drums are nine drum pieces (kick, snare, cross-stick, closed hat, open hat, ride, low tom, mid tom, and high tom). each drum set piece has parameters that can be modulated by individual step sequences - including velocity, pan, rate, reverse, probability. each of these parameters are modulated by increasing the value of a step in its step sequencer. each parameter has its own sequencer. each instrument has its own clock division and its own swing.


for now - please refer to this tutorial video:


(if anyone wants to supply a grid layout I would be exceedingly happy)


midi output and input is supported. midi output is sent per channel, each instrument on its own channel (1-9). midi input by default is note based but can be changed in the settings. instrument triggers can also be midi-mapped so you can use a midi controller instead of a keyboard.


you can record quantized notes onto any track. enter recording mode by toggling PARAMS > record, or by going into “ERASE/REC” mode on the grid by making the last two buttons dim.

writing patterns

you can actually compose patterns in a text editor instead of using the grid/norns. simply edit this file in maiden or your favorite editor. follow the patterns in that file for naming/syntax. those patterns will be available to select and load from the PARAMS menu.


this isn’t the final script I envisioned. but its fun to use, and I thought I’d share this iterations so that you might have some fun using it too. in the future I’d like to…

ideas are welcome. code changes are especially welcome. if you want to send a PR, please don’t hesitate. if you need help with a making a code change, please don’t hesitate to ask.

is it possible to use other samples?

it is possible, but you’d have to make this change yourself in the engine code. the filenames for each sample of each instrument are hardcoded. the files exist in folders according to their mic position (“hat”, “snare”, and “kick” microphones), where each sample has the same name for each mic position. then the code has a matrix for each instrument, where the round-robin sample is specified in each column and each velocity layer in the row of the matrices in the engine - for example see the assignment of kick samples.


install using with

;install https://github.com/schollz/lorenzos-drums

once you run for the first time it will automatically download the samples (requires 200 MB of disk space).