| Personal data | |
|---|---|
| Surname | Lyak |
| Name | Musya |
| Patronym | Silimovna |
| Birth year | 1950 |
| Birth month | 9 |
| Birth day | 24 |
| Birth place | Riga |
| Sex | F |
Lyak (née Nadel) Musya Silimovna (born 24 September 1950, Riga) — music teacher.
After graduating from the Abakan Music College, Musya Lyak worked from 1968 to 1979 as a violin teacher at the Livani Music School. In 1979–1980 she was employed as a nursery teacher at Kindergarten No. 38 in Riga.
Since 1968 she has been married to Uriy Chaimovich Lyak. Their daughters are Olga Uryevna Lyak (born 20 November 1970, Riga) and Zhanna Uryevna Lyak (born 28 December 1974, Riga).
Her father is Silim Borukhovich Nadel, her mother Gita Zalmanovna Nadel (née Taragina), and her brother Boris Silimovich Nadel.