The ARP String Ensemble, produced by Solina (a.k.a. Eminent NV) from 1974 to 1981, is a fully polyphonic multi-orchestral synthesizer with a 49-key keyboard. The sounds it incorporates are violin, viola, trumpet, horn, cello and contrabass. The keyboard uses 'organ style' divide-down technology to make it polyphonic. The built-in chorus effect gives the instrument its famous sound.
The Solina string sound also used by Kim/Ricky Wilde, Pink Floyd and Air. Jean-Michel Jarre's early trademark sound is this string sound (taken from Eminent) put through a Small Stone phaser working at 8V (for a softer effect).