Two experiments examined identification and bisection of tones varying either in temporal duration (Experiment 1) or frequency (Experiment 2). Absolute identification of tone durations and tone frequencies was influenced both by prior stimuli and by stimulus distribution; these contextual effects were similar for durations and frequencies. Stimulus distribution influenced the bisection point for both tone durations and tone frequencies in consistent ways such that more positively skewed distributions produced lower bisection points for both stimulus types. The effect of the distribution was greater when the ratio of the largest to smallest stimulus magnitude was greater. A simple mathematical model of bisection is described. It is concluded that (a) similar principles describe identification of temporal durations and other stimulus dimensions, and (b) shifts in temporal bisection point can be understood in terms of psychophysical principles independently developed in non-temporal domains, such as Parducci's (1965, Psychological Review) Range Frequency Theory.