102 fig1 communicates with the portable media player 104 is or was attached to the portable media player 104 the signal 304 represents an attempt by the host computer 116 in response to access information on the portable media player 104 corresponding to the accessory 106 i e physiologic data provided to the portable media player 104 from the data gathering device 102 via the accessory 106 the signal 306 represents the information corresponding to the accessory being provided from the portable media player 104 to the host computer 116 in addition the signal 308 represents feedback of user behavior information relative to the playback of media which may also correspond to use operation of the device 102 that provides physiologic data via the accessory 106 and concomitantly relative to the exercise cues this feedback user behavior information signal 308 may be used to modify or suggest modifications to the playlists templates or some combination thereof based on the user 39 s behavior as indicated by the signal 308 the modifications and or suggested modifications may be a result of processing within the host computer 116 or as discussed above the modifications and or suggested modifications may be a result of processing within the workout data service 118 typically resulting from processing of physiologic data from the particular user and related data from a community of users and not just from processing of physiologic data and related data from the particular user alone it is noted that as alluded to above while fig2 and 3 illustrate detecting whether the accessory 106 is or was connected to the portable media player 104 there are other examples in which the host computer.