Alfred (initially) Harth adapted the nickname of 23 in the wake of the Discordian Operation “Mindfuck”. In 1969 Harth and his free music group Just Music recorded his first LP (ECM 1002). They appeared at the 12th German Jazz Festival. 1974 Harth has played with Nicole van den Plas and Sven-Ake Johansson. Around the same time, his friendship and cooperation developed with Heiner Goebbels. The two played together in the band “Socalled radical leftwing hornorchestra”, which underpinned the actions of the Frankfurt “Spontis” with “leftist” overtones. 1976 the CD “Four fists for Hanns Eisler”, the first of at least seven recordings of the Duo Goebbels & Harth.
Some parts have been sung by Dagmar Krause, so they tried to work with strict, radical music that wanted to push the start of a new political era with new musical forms and their inherent new social content. The duo work in Goebbels & Harth was finished in 1988. Both playehad played with Chris Cutler, Christopher Anders friends and associates in the band Cassiber since 1982. The music was playful and happy as a duo, the influence of Slapp Happy and Henry Cow was here against the severity of the revolutionary vanguard. Harth changed his mind once more clearly to his skills as a free improvising musicians and performed on stage and on record in confrontation and communication with Paul Bley, Maggie Nichols, Barre Phillips, Mani Neumeier, Sonny Sharrock, John Zorn, Lindsay Cooper, Phil Minton, FM Einheit, Vladimir Tarasov, David Murray and Hamid Drake and many others. He now lives in Seoul, South Korea.