DJ Mix Generator™ by DJ Prince
Online database helps create a playlist based on BPM and chords:How to use the DJ Mix Generator Select the desired key from above radiobutton list, press the submit button. You will now see all the songs in the database with the selected key and the default tempo at 120 Beats Per Minute. Change the BPM value or select the Pitch dropdown box to see more result. To see the compatible tracks, select the “Show Compatible keys” option.
You can also use the seach field in the menu to the left, write a artist name or song title and press enter on your keyboard.
If this sounds helpful to any DJ, you can try it out here