In addition to orchestra playing Milan Telecký is also oriented to chamber music, and later even solo performing. His career as an orchestra player started in the Military Art Ensemble, where from 1954 – 1957 he was also violin section leader. From 1957 – 1960 he continued as a violinist in the first violin section of the Slovak Philharmonic and since 1960 was a section leader and solo violinist of the Slovak Radio Symphony Orchestra in Bratislava.
Important also is his performing in the legendary Slovak Quartet, where he played viola, since founding of the group in 1957 until 1987. The Slovak Quartet (former Bratislava Quartet) by its outstanding artistic maturity, thorough technical work and unique interplay soon gained a prominent place alongside other outstanding ensembles of this kind in former Czechoslovakia, and since the mid-1960s became well known abroad also.
Since 1967 Telecký has cooperated with the ensemble Bratislava Chamber Soloists founded and led by the primarius of The Slovak Quartet Aladár Móži. As a soloist he has cooperated with the former Czechoslovak Radio Symphony Orchestra (today Slovak Radio Smphony Orchestra), with Bratislava Chamber Association, Košice Chamber Orchestra, with The Slovak Philharmonic, The State Philharmonic Košice and also with The State Philharmony Sofia. He has co-performed under many conductors and his chamber partners were a series of performers. His long term piano partner was Helena Gáfforová. He introduced himself at music festivals as a soloist as well as chamber player (mainly with the Slovak Quartet) in Stockholm (1962), Locarno (1967), Prague Spring (1972), Wienner Fest (1991) and repeatedly with presentations of works and concert art in Slovakia and abroad. He has also recorded for Slovak Radio and Television as well as on audio media.