Fabsound, some suggestions in response to you request for
vinyl recommendations:
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Beethoven String Qts - opinions will be all over the
place. And different performing ensembles bring differing
strengths in the various period quartets (early, middle,
late). I recommend the following LPs for their excellent
sound quality coupled with very good overall performances:
Vegh Quartet on the French Valois label, reissued on
Telefunken. The Valois pressings sound a bit better but
the Telefunken pressings are good and very reliable.
Talich Quartet on Calliope 1631, 1634, 1637, 1638, 1639
1640
Julliard String Quartet on RCA (sound quality will vary
with pressing)
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Mozart String Quartets
The Amadeus Quartet on Deutsche Grammophon are very good
across the board.
The Salomon String Quartet on Hyperion are nice for a more
historically informed performance quality.
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Bach Cantatas
I continue to enjoy the Telefunken complete Cantatas
series with Harnoncourt and Leonhardt conducting. It is
one of the earliest efforts to bring some greater
historically informed performance practices to record.
While the choices made sound a bit dated in comparison to
where the HIP efforts evolved, the singing is quite
marvelous and all are nicely captured in the recordings.
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Mozart Oboe Quarter K370
The Boston Chamber Players makes a fine effort on this
piece in RCA LSC 6167
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Bach Cello Suites
Janos Starker, Mercury SR3-9016 - reissued in great sound
by Speakers Corner and still currently available new
Frans Helmerson on BIS LP 5, LP 25, LP 65
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Good luck in your search!
.