A very cool piece of electronic music history: the Synare Sequencer  made around the 70's till late 80's by the great Star Instruments Co. of Stafford Springs, Connecticut.

For use with Synare 3 electronic drums, the Synare Sequencer is capable of memorizing from one to four, 32-note sequences of up to 10-seconds duration each. 1 These sequences are played directly on your Synare 3 by hand. stick, or mallet. The system memorizes the intervals between notes, the rhythm, the dynamics of each hit, and which of up to four Synare 3 drums was hit. On playback, these sequences can be combined and a variable tempo may be selected. 

The Synare 3 drum and sequencer combination forms a truly polyphonic system: any drum can be played while the sequencer is in use. This allows overdubbing the sequence and adding accents or polyrythms on stage! A stunning addition to your playing!

Perfect for collectors, electronic musicians, experimentalists, and anyone who loves unusual vintage instruments.