more detailed links:


JUST MUSIC,1969,ECM 1002
4.JANUAR 1970,Alfred Harth Quintet
CANADIAN CUP OF COFFEE,1974,FMP/SAJ 02
VIER FÄUSTE FÜR HANNS EISLER,1976,FMP/SAJ 08 + CD on ReR London,2007
VOM SPRENGEN DES GARTENS,1978,FMP/SAJ 20+ CD on ReR London,2007
INDIANER FÜR MORGN,1981,Eigelstein/Riskant 4001
ZEIT WIRD KNAPP,1981,Eigelstein/Riskant 4014
FRANKFURT-PEKING,1984,Eigelstein/Riskant 4011
LIVE IN VICTORIAVILLE,1987,Canada,victo 04
GOEBBELS HEART,1992+1995,Tokyo,evva
SOGENANNTES LINKSRADIKALES BLASORCHESTER,1977/1980+1999,Trikont 258
ES HERRSCHT UHU IM LAND,1981,ECM/JAPO 60037
SAXOFONORCHESTER FRANKFURT,1982,FMP/SAJ 40
MAN OR MONKEY,1982+1994,London,ReR
THE BEAUTY AND THE BEAST,1984+1997,London ReR
THIS EARTH!,1983,ECM 1264
MACHANDELBOOM,1984,Eigelstein + 2005,SACD
MELCHIOR,1984,Biber Records 6240,Germany
DUCK & COVER,1986,London,ReR,Vol.1 Quaterly
NOUVELLE CUISINE,1985,Moers Music 2038
GESTALT ET JIVE,1986,Switzerland,CWR 1006/7
RED ART,1986,Switzerland,CWR 1004
ANYTHING GOES.1986,Switzerland,CWR 1005
PLAN EDEN,1987,Switzerland,CWR 1008
GO-NO-GO,1987,FMP 1150
DIE ZERSPLITTERUNG,1989,Wolke Verlag Hofheim
OH MOSCOW,1991,Canada,victo 015
THREE QUARKS FOR MUSTER MARK,1989,enja/Tiptoe 888803
SWEET PARIS,1991,free flow music 0291
POPENDING EYE,1992,free flow music 0493
DOMESTIC STORIES,1992,London ReR LSM
REALITY CHECK,Cop International
STATE OF VOLGOGRAD,1994,FMP 57
POLLOCK,1996,FTF/OS 011,Frankfurt/M
DIE KAINITISCHE STADT UEBER ABELS GEBEINEN,1997,Recout,Germany
A TWO THREE AGE,1997,Vinyl 11“,ttt,Frankfurt/M
SECRETS OF DEVELOPMENT,1999,Blue Noises 56512,Germany
WAXWEBWIND@EBROADWAY,2002,Portugal,Clean Feed 003
ESHIP SUM,2003,1000CD,Corea
NU:CLEAR RE:ACTOR,2004,O BACK CD,Corea - doubleCD
HEART/PO$TER,2004,rasbliutto CDR,Portland USA
ONJO,doubtmusic,Japan
T_ERROR + kr ./. jp,2005,Slowalk 01,Corea - DVD + CD
SEOUL MILK,2005,Slowalk 02,Corea
OUT TO LUNCH,2005,doubtmusic,Japan
NUN,2006,O BACK CD,Corea
EXPEDITION,2006,ESP 4031,USA
ONJO Live Vol.1 "series circuit",2007,doubtmusic,Japan - doubleCD
ONJO Live Vol.2 "parallel circuit",2007,doubtmusic,Japan - doubleCD
HOMURA,2007,off note,Japan - DVD + CD
SORA,2007,EWE,Japan
7000 OAKS,2007,Die Schachtel,Italy
LIVE AT VISION FESTIVAL VI,2008,Clean Feed 115,Portugal
MICRO_SAXO_PHONE II,2008,Laubhuette Productions,South Korea
TASTE TRIBES,2008,for4ears,Switzerland
LAUB,2009,Laubhuette Productions,South Korea
@ BLANKIES END,2010,Laubhuette Productions,South Korea
ENTELECHY,2011,Die Schachtel,Italy
MICRO_SAXO_PHONE III,2011,KSE,USA
RED CANOPY,2011,KSE,USA
GIFT FIG,2012,KSE,USA 
E.M.T. LIVE AT FABRIK HAMBURG 1973,2012,SAJ,Germany
GESTALT ET DEATH,2012,Al Maslakh,Lebanon
THE EXPATS,2013,KSE,USA
AS YVES DREW A LINE.ESTATE,2013,Re-Records,Hong Kong
MICRO_SAXO_PHONE IV,2013,KSE,USA
CASSIBER BOX,2013,UK
REGION 2 FOR SECONDS,2014,Laubhuette Productions,South Korea
CHINA COLLECTION,2014,KSE,USA
FIVE EYES,2014,Moloko Plus,Germany
STELLENBOSCH,2015,KSE,USA
CAMELLIA,2015,KSE,USA
CONFUCIUS TARIF REDUIT,2015,sporeprint,Germany
KEPLER 452b EDITION,2016,KSE,USA
MALCHA,2016,Moloko Plus,Germany
A23H's BERLIN ENSEMBLES,2016,KSE,USA
CAMPANULA,2017,Moloko Plus,Germany
WHEN THE FUTURE WAS NOW, 2018, KSE, USA
KIRSCHBLUETEN MIT VERSTECKTEM SPRENGSTOFF, 2019, Moloko Plus,Germany
LAUBHUETTE PRODUCTIONS, SIDE 1, 2020, Moloko Plus,Germany 
SWEET PARIS remastered + SWEET PARIS RELOADED, 2CD, 2022, Moloko Plus 115, Germany 
NISCHEN, 2023, Moloko Plus 146, Germany 

STREAMING (ON BANDCAMP etc):

MICRO-SAXO-PHONE, 2010, on KSE, USA
INVOCATION ORHK, 2013, Hong Kong
SCHRAUBENSUCHE IN TOKIO, 2021, Off, Belgium
From the archives:
LAUBHUETTE PRODUCTIONS, SIDE A, 2018, on play/rec, Shanghai, China
NEOWISE, 2020, on Al Maslakh, Beirut, Lebanon
WHO SHOT THE RABBIT?, 2021, Seoul, South Korea
Y NOT, 2021
MEMORIA ESCHATOLOGICA, 2021
FILM AND THEATER MUSIC COMPI II, 2021
SAM LANG, 2021
55 QUINTETS, 2021
WENN GOTT TOT IST, DANN IST ER IM HIMMEL, 2022
AXIOM, 2022
SIN:NED + ALFRED 23 HARTH LIVE, 2022
METTE RASMUSSEN + ALFRED 23 HARTH LIVE, 2022
REKLAME DER WIRKLICHKEIT, 2022
SUPERDELUXE 2000 - 2007, 2022
DUO GOEBBELS/HARTH, 2022
SAX PRESIDENT, 2022
MOTHER OF PEARL, 2022
HOERSPIELE 1987, 2022
HALE PEAT - THE SUDDEN DISAPPEARANCE OF HALE BOPP, 2023
IMPERIAL HOOT - TRIBOLOGY, 2023
FOXFUR, 2023
HONEYMOON AFTER 1ST WORLD MARRIAGE 1984, 2023
TATTOO, 2023
WORK IS LOVE MADE VISIBLE, 2023
EMT 1973, 2024
NEW THING 1968 - 1972, 2024