[1][2] He performed his first piano and organ pieces at age 13 on a tour of German cities, through the invitation of artistic director Hermann Wedekind.
In 1995 Memanishvili was listed in the book of UNESCO "New faces of the planet" awards, and, in 2001, was granted a State Premium[clarification needed] by Georgian Ministry of Culture for his original music for the theatre performance of Late Requiem.
Memanishvili is an author of original orchestral works, and a conductor of Tbilisi Music and Drama Theatre's performances of well-known compositions.
His musical Keto and Kote, staged in Tbilisi and Batumi in 2010, was a combination of Victor Dolidze’s opera and A. Kereselidze’s cinema version of the piece.
After Keto and Kote he orchestrated Vera District Melodies – original music by G. Tsabadze which was used in the film under the same name in 2012 – which was staged in Tbilisi and Batumi by producer and choreographer Redha Benteifour.