Seven listeners (mean age = 26 years; range = 21–34 years; 4 females) participated. One of them was the third author. For all listeners, pure tone thresholds were below 20 dB HL at octave frequencies from 250 to 4000 Hz for both ears. At 6000 Hz, pure tone thresholds were below 20 dB HL for both ears for all except one listener, for whom it was at 25 dB HL for one ear. All listeners had some degree of musical training. The seven listeners were selected from a pool of 17 listeners who were initially screened, because for them the third and the fourth harmonics contributed about equally to the residue pitch (in the absence of noise bands). Informed consent was obtained from all listeners. This study was carried out in accordance with the UK regulations governing biomedical research and was approved by the Cambridge Psychology Research Ethics Committee.