Renoise is not dead, it is very well alive and as strong if not stronger than it was 4 years ago. About the same as Blitz3D. So it is still time to talk to the Renoise team to have a DLL.
http://www.renoise.com/
Gabriel: What exactly are you trying to say? ;)
http://www.renoise.com/
Gabriel: What exactly are you trying to say? ;)