Hi Malx,
For me, Kertesz is excellent in Brahms' 4 Symphonies with the Vienna Philharmonic, and he & the LSO used to be one of the standard recommendations in the Serenades 1 & 2, decades ago. However, I feel that Kertesz has been surpassed in the Serenades by more recent recordings. So, while I'd urge you to definitely hear his performances, they aren't the ones that I'd most recommend.
First, it should be pointed out that Brahms originally wrote these works as chamber music; so not surprisingly, they work especially well when played by chamber ensembles, & particularly when the woodwinds & brass are players of the first rank. To the extent that Brahms original intentions are how this music most makes sense to me.
With that in mind, here are my two favorite chamber versions of the Serenade No. 1, Op. 11, & both are wonderful performances, so I wouldn't want to rank one above the other:
--Academy of St. Martin in the Fields Chamber Ensemble, Serenade No. 1 (coupled with Wagner's Siegfried Idyll):
Brahms: Serenade No.1 in D Major, Op.11 - 6. Rondo (Allegro)
--Czech Nonet, Serenade No. 1 (coupled with Dvorak):
Serenade in D major, Op. 11 - Allegro molto
Among the orchestral versions, I'd most recommend hearing the following five recordings (or at least the top three on my list), even though I don't enjoy any of them quite as much as the two chamber versions mentioned above:
1. Bernard Haitink, Concertgebouw Orchestra of Amsterdam, Philips:
Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 1. Allegro molto · Concertgebouworkest · Bernard HaitinkBrahms: The S...
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Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 2. Scherzo. Allegro non troppo - Trio. Poco più moto · Concertgebouwo...
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Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 3. Adagio non troppo · Concertgebouworkest · Bernard HaitinkBrahms: T...
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Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 4. Menuetto I - II · Concertgebouworkest · Bernard HaitinkBrahms: The...
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Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 5. Scherzo. Allegro · Concertgebouworkest · Bernard Haitink · Johanne...
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Provided to YouTube by Universal Music GroupBrahms: Serenade No. 1 in D Major, Op. 11 - 6. Rondo. Allegro · Concertgebouworkest · Bernard Haitink · Johannes ...
www.youtube.com
2. Claudio Abbado, Berlin Philharmonic, DG
3. Sir Charles Mackerras, Scottish National Orchestra, Telarc
4. Kurt Masur, Leipzig Gewandhaus Orchestra, Philips
5. Istvan Kertesz, London Symphony Orchestra, Decca