Composer. His mother Marje Sink (1910 - 1979) was also known as composer, an author of a number of sacred works. Kuldar Sink completed his studies in music theory at the Tallinn Music School in 1960 and graduated from the same school as flutist (with E. Peäske) a year later. At the same time he studied composition under Veljo Tormis. From 1961 to 1966 Sink studied at the Leningrad Conservatory with Andrei Petrov. He has worked as flutist in the Estonia Theatre and in the Estonian Radio Symphony Orchestra. Since 1973 he was a freelance composer.

Sink started to compose already in 1960 when he completed his Kolm pala keelpilliorkestrile [Three Pieces for Strings], a work played by the orchestras up to now. In the 1960’s and the 1970’s he joined with the mainstream of modern music including serialism, aleatorics and collage technique. In the 1980’s a significant change took place in his music. His musical language changed so deeply that it is hard to find common traits in his earlier and later works at the first sight. His search for the new tone color (characteristic to his earlier styles too) run to extremes in the 1980’s. At this time a sense of infinite flow of time springing from the Orient started to appear in Sink’s music. Henceforth his musical language became less complicated containing the elements from the gregorian chant, Estonian folk song and the Romanticism (in the aspect of melody). His later vocal music is mostly using the canonical texts.

Sink’s music is often used on the stage. His cycle Surma ja sünni laulud [The Songs of Death and Birth] (with the text by F. Garcia Lorca) inspired the choreographer Mai Murdmaa to create a ballet titled as Karje ja vaikus [The Cry And The Silence] in 1988. In 1991 she produced a ballet with the music of Maarjamaa missa [Mary’s Land Mass] by Sink (both productions in the Estonia Theatre).

Sink’s life was broken by a tragic accident. A biblical opera he was working at remained unfinished.

Works:

* Kolm romanssi F. Garcia Lorca tekstidele [Three Romances on the Texts of Garcia Lorca] (1959)
* Kolm pala keelpilliorkestrile [Three Pieces for Strings] (1960)
* Kammersümfoonia nr. 1 [Chamber Symphony No 1] (1963)
* Aastaajad, kantaat kammerkoorile ja -orkestrile Juhan Liivi ja jaapani luulele [The Seasons, cantata for chamber choir and chamber orchestra with the texts by Juhan Liiv and Japanese poetry] (1965)
* Väikesed keelpillikvartetid [Little String Quartets] (1965)
* Kammersümfoonia nr. 2 [Chamber Symphony No 2] (1967)
* Mäed ja inimesed klaverile [Mountains and People for piano] (1977)
* Flöötide sümfoonia kolmele flöödile [Symphony of Flutes for 3 flutes] (1984)
* Surma ja sünni laulud, vokaaltsükkel F. Garcia Lorca tekstile (hispaania keeles) [The Songs of Death and Birth, cycle with the text by F. Garcia Lorca, in Spanish] (1985)
* Sümfoonia neljale flöödile [Symphony for Four Flutes] (1985)
* Maarjamaa missa [Mary’s Land Mass] (1990)
* Aastaajad, tsükkel metsosopranile, flöödile, kitarrile, harfile ja tellole Juhan Liivi tekstiga [The seasons, cycle for mezzo soprano, flute, guitar, harp and violoncello] (1990)
* Ave Maria VII sopranile, flöödile ja harfile [Ave Maria VII for soprano, flute and harp] (1991)
* Ave Maria VIII sopranile, kitarrile ja flöödile [Ave Maria VIII for soprano, guitar and flute] (1991)
* Psalmid nr. 42, 62 ja 107 segakoorile [Psalms No 42, 62 and 107 for mixed choir] (1991)
* Pater noster soolosopranile [Pater noster for soprano solo] (1992)
* Kaks laulu Rainer Maria Rilke tekstidele segakoorile [Two Songs on the Text by Rainer Maria Rilke] (1993)
* Requiem aeternam meeskoorile [Requiem aeternam for male choir] (1993)
* Psalm nr. 89 segakoorile [Psalm No 89 for mixed choir] (1993)
* Otshe nash segakoorile [Our Father for mixed choir] (1993)