He shifted to rock music, but then continued classical studies at the Würzburg State Conservatory (now the Hochschule für Musik) with Bertold Hummel and later in Athens with Konstantinos Kydoniatis.
He has worked with various Greek singers, composing the music and writing the lyrics for a large number of hit songs (I akti, Pame gi’alles polities, Lathos epohi, Simera, Efiges noris, Zoi klemmeni, Kalimera ti kanis).
With his religious works, he has provided a very different perspective of contemporary byzantine music (Kyrie ton Dynameon, Efta Paraklisis, Imera Triti, Earini Ora).
He has also composed numerous soundtracks (Colours of Iris, Angel, Sudden Love, Stone Years, All in a road, Brides).
He has penned numerous hit songs for renowned Greek musicians and composed scores for successful films, theater productions, and television programs in Greece, Germany, and Italy.
Since 1995, Spanoudakis has focused on instrumental music inspired by Greek historical and religious themes, garnering significant popularity in Greece.
Nαrrαted by Kostas Giannikos Children's songs, with Nestor, Dori, Eva and Stamatis Children's songs, with Nestor, Dori and Stamatis Stamatis's first instrumental record Songs with Dimitris Tamposis and friends Music from the TV series of Pantelis Voulgaris Music from the TV series of Nikos Pilavios Music from the TV series of Nikos Pilavios A religious record with Giannis Koutras and Eleni Vitali Original soundtrack from the film by Giorgos Katakouzinos A religious record with Michalis Dimitriades and Electra Original soundtrack from the film by Giorgos Tsemperopoulos The first collaboration of Stamatis with Vassilis Saleas.
The artist's musical perception of events that took place in Smyrni in the early twentieth century The absolute "Best of" Stamatis Spanoudakis's works.
Various tracks with Dori Spanoudakis, in french A blend of melodies children's voices, classical and ambient orchestrations, guitars, pianos and violins.