Music Studio Producer by Frieve is a new, Free, MIDI sequencer/Multitrack for Windows which can host VST instruments and effects. Music Studio Producer appears to be a reduced feature version of Music Studio Independence which is Frieve's main product currently in development (v1.03 beta).
They don't specify the differences between the two versions so you'll have to download the freebie and check it out.
They don't specify the differences between the two versions so you'll have to download the freebie and check it out.