The first live performances of two symphonies by one of the defining composers of the 20th century.
Two Shostakovich World Premiere Performances

Dmitri Shostakovich (Photo: Roger & Renate Rössing, Deutsche Fotothek, adjusted by Improvist, CC BY-SA 3.0 DE)
Playlist
All music composed by Shostakovich.
Symphony No. 4
Moscow Philharmonic: Kirill Kondrashin, conductor
Symphony No. 13
Vitaly Gromadsky, bass; Republican Russian Choir; Moscow Philharmonic: Kirill Kondrashin, conductor