All week long, an Algerian army band tootled discordantly through some 60 unfamiliar national anthems.
The glories of John Nash's Regency terraces, Inigo Jones' Banqueting House, John Soane's Bank of England and Wren's churches were juxtaposed with discordantly cheap, gray cement .
Suddenly, during a Bach violin concerto, Soloist Sam Swaap started scrubbing his fiddle discordantly.