Here's an idea for legato phrase realism.
When a cellist performs a breve (2 whole notes) that is all it was meant to be, a breve. It is played with a particular technique, a particular expression, a particular vibrato progression, a very specific sound. A cellist will read ahead of where he/she is and know the music before they play it. If you are into listening to classical music, then you will know just how much expression goes into a performance. The sort of expression that cannot be finessed out of a note that was only ever meant to be played as a breve.
Maybe VSL could develop a library with four different recorded note lengths to be used exclusively in a legato patch. Samples that the software intelligently selects and connects with a legato transition. This would only be for playback.
I understand that VSL has developed a legato transition recording technique where they get the players to play fast, in order to capture the realism of a transition being played at speed. Those transitions are then being crossfaded into a sustain that was performed in a different musical context. If there was a new system that could recognise an event as being 16th, 8th, 4th or semi breve, and then select the corresponding length sample. Then, not only are the legato transitions the right speed but the note it transitions into will be a 16th, 8th, 4th or semi breve performed by an expert player.
Even if we need to add the CC data to the events in order for the Synchron player to recognise which length note to play. This would be a small price to pay for the realism I believe this system would provide.
:)