Hi! I am glad to return after a long period of inactivity on the forum.
During that time I was trying to build a web service, which allows everyone to upload music in MIDI format and get it performed with professional virtual instruments without installing any software: https://artinfuser.com
Most of orchestra instruments are implemented and also piano, pipe organ and jazz drum set are available. You can upload your music and try. I hope that this service can be useful for students and people who do not have virtual instruments installed. And also for composers who do not want to spend time on tweaking virtual instruments.
You are able to tweak hundreds of parameters for each instrument, for example increase/decrease length of automatic crescendo, decrease use of glissando articulations, shorten legato transitions, increase or decrease vibrato intensity and more.
Here is how it is done:
1. You upload MIDI file, choose setting and start processing
2. Algorithm uses multiple algorithms to select appropriate articulations, randomize parameters and draw curves for dynamics, vibrato intensity, vibrato speed - thus creating "prepared" MIDI file.
3. Prepared MIDI file is imported into DAW with virtual instruments loaded. Then music is rendered into MP3.
4. Now you can download MP3 or prepared MIDI file as you want. You can even download separate MP3 files for each instrument.
You can listen to an example of audio that is created automatically on the main page: https://artinfuser.com/studio