Yes, this is next generation of BIAB-like programs. 
It can be used to prepare quality styles for (hardware) autoarrangers -- it has built-in rendering engine (so called "MIDI enhancer" from NTONYX, Novosibirsk, Russia).
Another programs with music rendering develops at  
www.musiclab.com   (from Rostov-on-Don, Russia).
You can use such a programs to compose your own "quasi-live" styles more quickly than with sequencer use only.