KuStudio
Minimalistic and superstable OSC timeline/sequencer
... Duration OSC editor, but has different philosophy: KuStudio stores all OSC tracks as discrete arrays, not curves, that allows to record and edit them freely. Also, KuStudio performs very stable for 10 min and longer projects.
It is made with openFrameworks and is available for OSX and Windows.
KuStudio on GitHub: https://github.com/perevalovds/KuStudio
KuStudio is developed and currently supported by Denis Perevalov. First versions were developed together with Kuflex.