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Seffy Efrati
Background information
Birth name	Yoseph Efrati
Born	1975, Israel
Genres	New prog, rock
Occupations	Musician, bassist
Instruments	Backing vocals, bass guitar
Associated acts	Blackfield Aviv Geffen
Notable instruments
Fender Precision Bass Spector Bass

Seffy Efrati is an Israeli musician known for being the bassist for Israeli rock star Aviv Geffen. Before then, he joined the Israeli-British Art rock band Blackfield with Geffen and Porcupine Tree leader Steven Wilson. Efrati, a lefty bass player, plays a Spector Bass that was personally designed for him by the manufacturers.

Efrati appears onstage regularly in his native country, and has appeared on many Israeli pop and rock recordings, including records by Aviv Geffen, Hemi Rudner, Ninette Tayeb, Daniel Salomon, Ram Orion and numerous Alternative Rock Tel Aviv bands.

In 2008 Efrati co-starred in the groundbreaking, nationally acclaimed mini-series "Ta'ase li Yeled" (Hebrew: תעשה לי ילד, directed by Yuval Schafferman for Israeli channel HOT3.

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