Here are some special records by Klaus Wunderlich with commentary. Very interesting.
KAUF' DIR EINEN BUNTEN LUFTBALLON (TELEFUNKEN SLE 14328-PEX) 
Hammond C-3 with Rhythm & vocal group: Sonja Michael and the Centauris. A plum Gold record label. 14 tracks of which four are solo organ recordings and all of which Klaus went on to record again on other LPs. Cover pictures of vocal group with Klaus seated at the C3. Released approx 1963. Despite having sleeve notes written in English, this was never released in the UK and copies would have had to have been imported on special order from Telefunken. The sleeve notes indicate that Klaus composed music for movies, but the author has no acknowledge if this is correct, and if so, which movies they were. The vocal group seem to have disappeared without trace! As of 2025 this has never been re-issued or form part of a compilation.
Here is an acoustic cross-section of these recordings.
HAMMOND POP SERIES
This Telefunken series totalled 10 in number commencing in the late 60s and continued until the early 70s with LP / cassette and even some 8 track cartridge versions. Each release was with a Rhythm Group but no named credits are given. Many early releases outside this series often featured slightly different front and back cover designs, whereas all POPS albums displayed attractive photo models on their front covers — which worked very well in the 1980s ;-) HAMMOND POPS Vol. 9 was released after Klaus Wunderlich had already built his own recording studio. This allowed him to take as much time as he wanted for recordings, without the high costs of commercial studios and travel expenses.
In the following demo, excerpts from all ten productions can be heard in chronological order. Particularly noticeable at 5:18 is the transition from Hammond Pops 8 to 9. The difference can be heard mainly in the bass, which was now recorded by Klaus himself in his own studio.
AROUND THE WORLD WITH KLAUS WUNDERLICH (ST 3002/1-2)
This would appear to be the first of several double album gate fold releases and the cover shows Klaus Wunderlich standing between two Air Hostesses dressed in typical Mexican attire. These two long-playing records were also recorded using the Hammond organ and the rhythm section that was obligatory at the time.
SUPER STAR SOUND HAMMOND GALA (SLE 14613-PEx TTP 91.454)
Telefunken catalogue omits Suffix letter X. Hammond H-100 with Jerry Wilton Orchestra of 28 musicians. Recorded "live' in the TELEC, Hamburg studios with additional organ recording made the following day after departure of the Wilton Orchestra. One of several recordings on which Klaus was not the producer. The person credited with this role is Franz Josef Breuer. Released 1971.
HAMMOND FOR CHRISTMAS. (WEIHNACHTEN MIT KLAUS WUNDERLICH) (SLE 14618-PEX. (6.21072 AF) Telefunken catalogue omits AF suffix)
Hammond H-100 with Rhythm. Solo + selected tracks with rhythm. Each side played as a continuous medley. Three almost identical covers exist: the rear English sleeve is in pink: whilst both German copies are either blue or purple. Additionally the purple backed copy has the title WEIHNACHTEN MIT KLAUS WUNDERLICH on the front cover and has the number 6-21072 AF If compared side by side the candle positions and burn rates are all
different, and only the pink cover version has the English translated titles beneath each track. Released 1971.
HITS AGAIN SERIES
This next series, all released in the 70s, ran to 5 Volumes. Volumes 1-4 featured the Hammond A100 with Rhythm Group, but Vol 5 was the first to feature the 'New Pop Organ Sound' comprising of Hammond A100 / Lowrey H-25.3 / Wersi W-248S. Attractive girl model still adorned the front covers.
Sound 2000
For the first time, in 1973 Klaus augmented his Hammond H-100 with a Moog synthesizer and his Bösendorfer grand piano to realize Sound 2000, the first of four very special productions.
In 1974, the productions Sound 2000 Vol. 2 and the pure synthesizer production URALTEDELSCHNULZNSYNTHESIZERGAGS followed. Although the latter was actually created outside the Sound 2000 series, thematically it naturally fits into the series. These two productions demonstrate Klaus Wunderlich’s incredible technical skills in his studio. Both productions required up to twelve tracks for multitrack recordings, with the additional drum, tambourine, and bongo parts all played by Klaus himself.
In 1975, the series concluded with the production Sound 2000 Vol. 3, in which Klaus once again returned to instrumentation using Hammond, piano, Moog, and rhythm. Klaus Wunderlich later explained that German fans did not particularly like the new Moog synthesizer releases and stated (quote): “Now the Moog stands in a corner and looks at me!”
Later on, Klaus used only a smaller Moog (Minimoog) to record the bass lines.
Here are four excerpts from the productions in the order 1–3, followed at the end by a track from the URALTEDELSCHNULZNSYNTHESIZERGAGS.
WUNDERLICH POPS SERIES
This series ran for only 7 Volumes between 1974 – 78 and each indicates the New Pop Organ Sound comprising of Lowrey H-25-3 / Wersi W-248-S / Synth-Bass / Drums and percussion. Even so some were solo organ organ releases and some were Wersi Helios only. By the time that HAMMOND POPS Vol 9 had been released Klaus had built his own recording studio which enabled him to take as little or as much time as was required without the huge costs of travelling to avail himself of a commercial recording studio.
The excerpts from the Wunderlich Pops albums 1–7 clearly show how the “Wunderlich” sound evolved with the possibilities of his three organs. Klaus Wunderlich mastered and employed multitrack recording like hardly anyone else.
KLAUS WUNDERLICH AN DER HEIMORGEL (Telefunken 6.22267 AZ)
The first 'Play along with Klaus' release came with a 24 page booklet. The left stereo channel contained the sounds of the Lower manual: the right channel contained the Upper Manual and the bass came from the centre. Instruments used are: Hammond H-100 / Hohner Symphonic 909 / Wersi W-248-S / Lowrey H-25-3 with rhythm generated by Ace-tone FR8L / Hohner auto Rhythm player / Wersi Wersimatic. Released 1975. Despite the lavish presentation and accompanying booklet the price was only £3.99p. Copies do become available on Ebay but purchase should always include the booklet.
DREAM CONCERTO: LIEBESTRAUME MIT KLAUS WUNDERLICH (6.28379. DP. 4.28379)
Double album featuring Hohner Electra piano T / Hohner Clavinet D6 / Hohner string-melody. Percussion. Drums: Hermann Mutschler. Outer sleeve has full title of DREAM CONCERTO LIEBESTRAUME MIT KLAUS WUNDERLICH. Inner cover shows the instruments used in the recording: label in red with sleeve notes in German and English. Composers listed whereas in alternative version DKL-R 100/1/2 these are omitted as is LIEBESTRAUME MIT on jacket art work! Version has blue/silver label with the instruments replaced by two B&W photos of the artist against a water background. This version also has a 2 LP boxed logo at bottom left of front cover. Reverse lists an 8 trk cartridge version as being available. Outer front and rear 'mirrored' photo presentations show alternative shots taken at the same session. Klaus is positioned slightly different on both LPs. Front & rear cover shots differ slightly in respect of his body position in relation to the wall when viewed as a pair. The only complete electronic organ recording that Klaus made which did not feature his usual Hammond, Wersi or Lowrey instruments. Cassette version Teldec KDKC 2.8072. Originally released 1977 but CD version BLR 89 087 with the title DREAM MELODIES re-released by Bell Musik (Germany) in 1999.
KLAUS WUNDERLICH POP PARTY Vol 1 (Telefunken 6.23802.45 4.238002. Released 1979)
Wersi Helios / Synth-Bass/Drums and percussion. Released in Germany as KLAUS WUNDERLICH I HOUR PARTYGAST No 1. (613800 AS.) There were no other releases in this series as his Telefunken contract w as terminated. His new contract was with EMI and his new recordings began to appear on the 'Odeon' label.
KLAUS WUNDERLICH IN CONCERT. ODN 1003 (EMI-ELECTROLA 062-46230)
The first of these was KLAUS WUNDERLICH IN CONCERT on the Wersi Helios. Produced as a souvenir of his 1979 German/England Tour the sleeve notes suggest that it was recorded 'live' in concert and many people insist that it was. However, the applause is so obviously dubbed on at the beginning of the recording, and as the 'audience' never applaud again, which would be the natural sound to hear after each number if it was a live concert, this indicates that it was a studio recording. Released 1980.
This EMI Contract was short lived and ran to only 5 recordings on that label, because he then signed with the German ARIOLA Label in 1983 releasing only 3 new recordings and subsequently signed with Polydor Records in 1984. Once again it was yet another short lived contract with only 3 releases until 1985 when he re-signed a new Telefunken Contract. This saw the demise of the Telefunken name and replaced only with TELDEC and the labels were now blue/white & purple. There were a few cassette versions manufactured with a CARSETTE quality logo.
You’ll also find more interesting facts about Klaus Wunderlich - here 