It was with enormous pride in the achievements of his 23-year-old protégé Vítězslava Kaprálová that Bohuslav Martinů wrote the following in his review of the 1938 International Society for Contemporary Music (ISCM) Festival, held in London:
The very first item on the programme of the Festival was Military Sinfouictta by Vitězslava Kaprálová – an opening with great promise for both the festival and the composer. Her performance was awaited with interest as well as some curiosity – a girl with a baton is quite an unusual phenomenon – and when our ‘little girl conductor’ (as the English newspapers called her) appeared before the orchestra, she was welcomed by a supportive audience. She stood before the orchestra with great courage and both her composition and performance earned her respect and applause from the excellent BBC orchestra, the audience, and the critics. … Kaprálová's international debut is a success, promising and encouraging.