Purpose: Music is recognized as a useful distractor from unpleasant symptoms during exercise and provides motivation; however, little is known about its application during pulmonary or cardiac rehabilitation programs, including its use, genres, and influences on genre selection. This study aimed to determine the current practice of background and self-selected music listening during exercise training in pulmonary and cardiac rehabilitation programs in Australia. Methods: This was a cross-sectional study, using 2 anonymous, electronic surveys. Participants were program contacts (clinicians) listed on national databases. Results: There were 17 of 100 (17%) and 31 of 250 (12%) respondents for pulmonary and cardiac rehabilitation programs, respectively. A total of 15 respondents (88%) reported using background music for pulmonary rehabilitation, whereas 29 respondents (94%) reported using background music for cardiac rehabilitation. Clinicians and participants had input into the selection of background music genres. Background music was preferentially upbeat and energizing, selected to motivate participants. Use of self-selected music listening by participants for individual use was uncommon in pulmonary (24%) and cardiac rehabilitation (32%). Conclusions: Background music is played during exercise training sessions within a limited proportion of pulmonary and cardiac rehabilitation programs surveyed in Australia. A wide range of genres were applied in background music listening, with selections predominantly based on their potential to motivate participants to exercise. There is little use of self-selected, individualized music listening among participants in these environments.