Sorry, but I believe that I didn´t explain well... this alternative is not valid, because I want to try to pre-record (example) my voice introducing "Satisfaction" by Rolling Stones (and many songs more) and RadioBoss must identify the intro with my voice (that correspond to "Satisfaction") and play it over the song, in the intro or ending point (according the necessities of each song). And If I have all intros pre-recorded with different voices, It will be great give to RadioBoss the option to play my voice over the songs (every intro of a song over that song) in a range of hours (from 8:00 to 12:00 hrs) or in a playlist with the possibility to use different voices over the same songs according to an hour or playlist. It will be like simulate to have different djs/voices at different hours talking live. Other possibility is pre-record two or more intros from the same song and RadioBoss choose a different intro everytime is played that song and plays both audio files at the same time, "mixed". Thank you!