Mother's Day concert featuring beloved Estonian musical performer and actress Hanna-Liina Võsa and Ooper-Kvartett with the program 'Helisev muusika', including operetta and Estonian music pearls by Ehala, Valgre, Gershwin, Bernstein, Loewe, Rodgers, and others. Hanna-Liina Võsa is known for her clear vocals and stage charisma, starring in musicals, opera, and concert projects, and runs her own musical school. Ooper-Kvartett, formed in 1997 from a classical string quartet, performs opera, operetta, musicals, gypsy songs, swing, and jazz; all members work at Rahvusooper Estonia.