He was frequently found at the piano in the student common room, making up topical songs and mixing the latest jazz tunes with classical music.
[4] 1933 also saw Zwar make his first appearance on radio, being part of a 3AR programme of dance music that was interspersed with singing by Ella Riddell and comedy by Johnny Marks.
[6] Zwar's growing reputation also saw him invited to contribute additional lyrics for F. W. Thring's 1933 production of the T. Stuart Gurr and Varney Monk musical comedy Collits' Inn.
Produced by J. C. Williamsons, Zwar was given the opportunity to work closely with 'the Firm's' highly experienced music director, Andrew McGunn.
He also wrote songs with Kenneth Leslie-Smith, Diana Morgan, Robert MacDermot (1910–1964) and Australian Lance Mulcahy.
Premiering on 20 April, the show also included contributions from Woody Allen, Jerry Herman and Jay Thompson.