Past work has shown varying degrees of relationship between pitch and rhythm perception. Current work investigated the relationship between pitch and rhythm processing in a four-tone sequence-reconstruction task which places additional demands on short-term memory. Sequence tones either had a fixed duration (212 ms) with frequency randomly selected from a logarithmically scaled distribution (400–1750 Hz), a fixed frequency (837 Hz) with a randomly selected log scaled duration (75–600 ms), or a random frequency and duration. In initial conditions, the task was to assemble sequence elements to recreate the target sequence for each of the three sequence types. To evaluate effect of extraneous randomization, both frequency and duration were randomized in the final two conditions with only one of the two attributes defining the target sequence. When only one stimulus attribute was randomized, performance was significantly better with sequences defined by pitch rather than rhythmic variation. Combining pitch and rhythmic variations led to a slight improvement in performance, while the introduction of extraneous variation had little to no effect when either pitch or rhythm defined the target sequence. Overall, there was a wide performance range across listeners with listeners clustered primarily by ability to use pitch information. [Work supported by NIH.]