Vivace for Bassoon (or Bass Clarinet) and roto-toms by Krzysztof Penderecki. Schott, 2018, SS, 2 pages (1 copy in score format). Krzysztof Penderecki (1933-2020) was a Polish conductor and composer. The roto-toms are a tunable percussion instrument. The bassoon/bass clarinet part is entirely in bass cleff