Sebastian Pfeifer (born 1999 in Oldenburg(Oldb)) became interested in music at the age of 5. First he had classical piano lessons, later he added cello and drums. His piano teacher kicked him out of lessons at the age of 12 because he didn't practice enough and was increasingly losing interest in classically notated music. From that point on he began to take an interest in electronic music. He quickly developed the desire to produce his own tracks. He started writing his own songs with FL Studio. He soon reached his musical limits and needed new input, so he started improvising on the piano. At the age of 16 he fell in love with jazz music and began to learn rhythm, harmony and melody autodidactically. At 17 he took his first lessons with Klaus Ignatzek, who pushed him further and advised him to study. Finally he began studying jazz piano in Munich with Christian Elsässer and Tizian Jost. In 2021 he traveled to Mongolia for a semester, which was made possible by a scholarship. He also received the DAAD scholarship, musikfonds and the pop production scholarship from the city of Munich. In addition to jazz, he also continued to produce his electronic music, which increasingly intertwined with the new influences. This is how his alias "Beifer" was created, with which he releases electronic music with jazz influences. With this project he has already won 2nd prize in the "do your own thing" competition at the Domicil in Dortmund. In 2023, after a few singles, he released his debut album "constant.transition" on the label "tunnel.visions", which received a good response in both the jazz scene and the club scene. This album features the singer ENJI and the saxophonists Moritz Stahl and Wanja Slavin. Towards the end of his studies, Sebastian Pfeifer concentrated on new, avant-garde, experimental music. In April 2024, he released his work “ERDEN” under his real name, which he labels as experimental, electronic. Christian Lillinger made a contribution to this. With this work, which also includes AI-generated instruments, he won 3rd place at the Jazz-KI Award, which included a performance at ELBJAZZ 2024. ERDEN was followed up by 2 singles, which productions are based on random effect-chains.