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Reva L'Sheva

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01In brief

Reva L'Sheva (רבע לשבע) is an Israeli Jewish rock band founded in 1994 by Yehudah Katz and Adam Wexler, active for approximately a decade until 2004. Described as one of the first Israeli groups to rock out on Jewish themes, the band forged a distinctive sound by fusing the spiritual musical style of Rabbi Shlomo Carlebach with the electric, improvisational energy of the Grateful Dead, earning recognition as a seminal Jewish jam band. A 1997 performance at a Yom Yerushalayim event on Mount Scopus—where the group played at approximately 2 a.m. before some 10,000 people—was compared to "a pure and holy Woodstock" and became a major launching point for the band's wider recognition.

02Overview and Musical Identity

Reva L'Sheva built its musical identity on the blueprint of Rabbi Shlomo Carlebach while adding an electric approach shaped by Grateful Dead-influenced exploration and rock intensity. The resulting style combined rock, soul, country, and Torah.[2]

The band became known for energetic, mind-expanding live performances. Its music and performances advanced the founders' stated aim of bridging religious and secular worlds and bringing people together through music.[2]

03Origins and Formation

Reva L'Sheva was founded in 1994 by Yehudah Katz and Adam Wexler.[2] Katz had immigrated to Israel from Los Angeles with his wife in 1993, bringing with him two dominant musical and spiritual influences: the Carlebach nigunim tradition and the improvisational rock of the Grateful Dead.[3] Wexler, a bassist from Minnesota, had previously played regularly with the Diaspora Yeshiva Band, a proto-Jewish rock group active in the 1980s, and had worked as a session musician for Frank Sinatra and The Four Seasons.[4]

Katz described the group's origins without grand ideological ambition: its members were musicians playing the music they enjoyed, which he characterized as "this fusion of rock & roll and Shlomo."[2] Their central goal was to bridge religious and secular worlds and bring people together through music, rather than position themselves as pioneers of a new genre.[2] The group is cataloged as a musical band and credited with musical arrangements on recorded works.[1]

04Key Performances and Rise to Prominence

The band's breakthrough moment came in 1997 at a Yom Yerushalayim celebration on Mount Scopus in Jerusalem.[2] Playing at approximately 2 a.m. before an audience of roughly 10,000 people—most of whom did not know the band beforehand—Reva L'Sheva delivered a performance that Channel 1 broadcast.[2] A reporter covering the event said the group had "started playing and turned the evening into a pure and holy Woodstock." Katz later regarded the night as the major launching point for the band's wider recognition.[2]

Beyond that landmark evening, the group's reputation was sustained by support from influential broadcasters. Ehud Manor, the celebrated songwriter and radio personality, featured Reva L'Sheva on his daily radio program, while Army Radio provided occasional airtime.[2] The band also released a series of well-received albums over the course of its active decade.[2]

05Members and Personnel

Over its decade of activity, Reva L'Sheva drew on a rotating circle of musicians alongside its core founders. Musicians who passed through the band included guitarist David "Harpo" Abramson, guitarist Lazer Lloyd—formerly known as Eliezer Blumen—violinist Nitzan Chen Razel, singer and keyboardist Chanan Elias, and percussionist Yitzhak Attias.[2] Adam Wexler served as bassist and was also a co-writer of much of the band's original material.[4]

Abramson, one of the band's guitarists, died in 2010.[2] When members later reunited, the planned lineup comprised Katz, Lazer Lloyd, Razel, Elias, and Attias.[2]

06Recorded Work

A 1999 recording preserved in the National Library of Israel illustrates the band's output during its active years.[5] The catalog record identifies Yehudah Katz as singer, producer, and performer, with Reva L'Sheva credited as the participating band, and notes that the release was issued in Israel by Kolot Ba-Derech.[5]

The CD runs for 1 hour, 3 minutes, and 57 seconds and contains 16 Hebrew-language tracks.[5] The titles are Radio Shelanu, Horeni, Kol Ha-Neshama, Ma'agal Ha-Tofim, Etz Chaim Hi, Ve-Nisgav, Al Naharot Bavel, Ma Tov, Chevra, Amadot, Yah Ribon, Bechol Mikal, Shir Ha-Shirim Li-Shlomo, Oz Ve-Hadar, Simcha Le-Artzecha, and Tefilat Ha-Ya'ar.[5] The recording is classified under Hebrew songs, popular music, Hasidic music, and Jewish musical traditions, including Ashkenazi and Eastern European traditions.[5] The physical item consists of one audio CD accompanied by a 12-page illustrated booklet containing Hebrew lyrics and color portraits of the performers.[5]

07Legacy and Influence

A 2004 Jerusalem Post review named Reva L'Sheva "the leading candidate for title of godfather to the post-Carlebach rock bands" and credited the group with paving the way for later spiritual jam-rock acts including Soul Farm, Blue Fringe, and the Moshav Band.[2] The assessment placed Reva L'Sheva among the formative acts that opened space for later combinations of Jewish spirituality and rock.

The band's continued reach was evident years after its initial run. At a memorial concert in Beit Shemesh—attended by roughly 3,000 people, most between 16 and 25 years old—Katz was surprised to find that the young audience knew the words to its songs.[2] The performance was followed by plans for a reunion concert at Zappa Jerusalem after approximately seven years without a full-fledged performance.[2]

Katz's connection to the Carlebach legacy extended into an institutional role: he later served as musical director of the annual Shlomo Carlebach Memorial Concert, assembling a house band drawn from Reva L'Sheva personnel and other Carlebach-associated musicians.[6] At a 2005 Carlebach memorial evening, Reva LeSheva served as the backing band for the participating artists, with Katz as lead singer.[7] These roles kept the band's personnel involved in annual tributes to the musical tradition that had shaped Reva L'Sheva.

Sources

  1. 1National Library of Israel — Institutions (accessed September 18, 2026)
  2. 2The Jerusalem Post — Reva L'Sheva's Seven-Year Itch (accessed September 18, 2026)
  3. 3The Jerusalem Post — Yehudah Katz Gives Thanks (accessed September 18, 2026)
  4. 4The Jerusalem Post — Jewish Discs (accessed September 18, 2026)
  5. 5National Library of Israel — 1999 Recording Catalog Record (accessed September 18, 2026)
  6. 6The Jerusalem Post — A Carlebach Kind of Feeling (accessed September 18, 2026)
  7. 7The Jerusalem Post — Revisiting the Rebbe (accessed September 18, 2026)

IsraelPedia Question & Answers

  • What is Reva L'Sheva?

    Reva L'Sheva (רבע לשבע) is an Israeli Jewish rock band founded in 1994 by Yehudah Katz and Adam Wexler, active for approximately a decade until 2004. Described as one of the first Israeli groups to rock out on Jewish themes, the band forged a distinctive sound by fusing the spiritual musical style of Rabbi Shlomo Carlebach with the electric, improvisational energy of the Grateful Dead, earning recognition as a seminal Jewish jam band.

  • What were the musical backgrounds of Reva L'Sheva's founders?

    Yehudah Katz immigrated to Israel from Los Angeles in 1993, bringing with him two dominant influences: the Carlebach nigunim tradition and the improvisational rock of the Grateful Dead. Adam Wexler, a bassist from Minnesota, had previously played regularly with the Diaspora Yeshiva Band and had worked as a session musician for Frank Sinatra and The Four Seasons.

  • What was Reva L'Sheva's breakthrough performance?

    Reva L'Sheva's breakthrough came in 1997 at a Yom Yerushalayim celebration on Mount Scopus in Jerusalem. Playing at approximately 2 a.m. before an audience of roughly 10,000 people—most of whom did not know the band beforehand—the group delivered a performance broadcast on Channel 1 that a reporter described as having "turned the evening into a pure and holy Woodstock." Yehudah Katz later regarded the night as the major launching point for the band's wider recognition.

  • Who helped bring Reva L'Sheva to a wider radio audience?

    Ehud Manor, the celebrated songwriter and radio personality, featured Reva L'Sheva on his daily radio program, while Army Radio also provided occasional airtime. This broadcaster support helped sustain the band's reputation beyond its landmark live performances.

  • What influence did Reva L'Sheva have on later Jewish music acts?

    A 2004 Jerusalem Post review named Reva L'Sheva "the leading candidate for title of godfather to the post-Carlebach rock bands" and credited the group with paving the way for later spiritual jam-rock acts including Soul Farm, Blue Fringe, and the Moshav Band. The assessment placed Reva L'Sheva among the formative acts that opened space for later combinations of Jewish spirituality and rock.

  • What is documented about Reva L'Sheva's recorded output?

    A 1999 recording preserved in the National Library of Israel identifies Yehudah Katz as singer, producer, and performer, with Reva L'Sheva credited as the participating band, and notes the release was issued in Israel by Kolot Ba-Derech. The CD runs for 1 hour, 3 minutes, and 57 seconds, contains 16 Hebrew-language tracks, and is accompanied by a 12-page illustrated booklet with Hebrew lyrics and color portraits of the performers.

  • What role did Yehudah Katz take on in relation to the Carlebach legacy after Reva L'Sheva's active decade?

    Yehudah Katz later served as musical director of the annual Shlomo Carlebach Memorial Concert, assembling a house band drawn from Reva L'Sheva personnel and other Carlebach-associated musicians. At a 2005 Carlebach memorial evening, Reva L'Sheva served as the backing band for the participating artists, with Katz as lead singer, keeping the band's personnel involved in annual tributes to the musical tradition that had shaped them.