mood

A monophonic synthesizer for Max for Live and Max inspired by mooD by Eugenio Giordani and Alessandro Petrolati, which in turn follows the Minimoog Model D. It is built on three Csound opcodes ported to plain C and wrapped as Max and Pd externals:

External	Csound opcode	Author of the algorithm	Role in the synth
squinewave~	squinewave	Rasmus Ekman	the three oscillators
moogladder2~	moogladder2	Victor Lazzarini, after Antti Huovilainen	the ladder filter
reverbsc2~	reverbsc2	Sean Costello	stereo reverb on the output

The DSP code is Csound's, freed from the Csound API (core/), with a thin wrapper per host (pd/, max/). The externals are general purpose: use them in your own Max and Pd patches too.

Not affiliated with Moog Music, nor with the authors of mooD. "Minimoog" and "Model D" are trademarks of their owners and are used here only to describe the design this instrument follows.

Download

From Releases:

File	Contents
mood.amxd	the Max for Live device, frozen: the externals for macOS and Windows are inside
mood-<version>-macos.zip	max/: device, mood.maxpat, .mxo (arm64 + x86_64); pd/: .pd_darwin
mood-<version>-windows-x64.zip	max/: device, mood.maxpat, .mxe64; pd/: .dll
mood-<version>-linux-x86_64.zip	pd/: .pd_linux
mood-<version>-linux-aarch64.zip	pd/: .pd_linux (Raspberry Pi 4/5, Bela, ...)

Max does not run on Linux, so the Linux zips have the Pd externals only. Every zip includes the help patches of the three objects.

Install

Max for Live. Drop mood.amxd on a MIDI track. The device is frozen with its externals, nothing else to install.

Max. Add max/ to Options > File Preferences and open mood.maxpat or the help files.

Pd. Copy the files of pd/ into a folder of Pd's path (or use [declare -path ...]) and open the -help.pd patches.

macOS. The externals are ad-hoc signed, not notarized. If macOS blocks them after the download:

xattr -dr com.apple.quarantine path/to/max path/to/pd

Build

Dependencies, not included in this repository:

• Max SDK: Cycling74/max-sdk-base (MIT), cloned as max-sdk-base/ (ignored by git) or pointed to with MAX_SDK=.../c74support
• Pd sources: the src folder of a Pd installation, PD_SRC=... (default: Pd 0.56-2 in /Applications)
• zig for the Linux and Windows builds, Xcode command line tools for macOS, python3 to regenerate the patches

git clone https://github.com/Cycling74/max-sdk-base
make           # macOS: build/macos/{pd,max}, universal, ad-hoc signed
make cross     # Linux x86_64/aarch64 (Pd), Windows x64 (Pd, Max) in build/
make release   # both, then the zips in dist/
make patches   # regenerate patches/mood.maxpat and mood.amxd from the Python scripts

make patches overwrites the device and the patch saved by Max: the committed device is frozen and may have edits made in Max that the scripts do not have.

Layout

• core/: squinewave.c, vafilters.c (Csound's newfils.c filters, moogladder2 among them), reverbsc.c
• pd/, max/: the wrappers and the help patches. vafilter~.c builds one filter of the table in core/vafilters.c chosen with -DVA_NAME; reverbsc~.c builds reverbsc2~ with -DREVERBSC2
• patches/: mood.amxd (frozen), mood.maxpat and the Python scripts that generated them
• scripts/: cross builds and release zips

License

LGPL 2.1, like Csound: see LICENSE. The Max externals are linked with code of the Max SDK (Cycling '74, MIT): see LICENSE-MAX-SDK.md. The SDK itself is not in this repository.