Originally Posted By: Noel96
.... The "Just intonation" tuning system was only good for key signatures that had less than two or three sharps or flats ... Noel

One remark .. i played a just tuned (by the expert tuner and maker Marc Savoy) Cajun melodeon at a studio gig. The professional Classically trained pianist and studio owner kept saying: that thing is out of tune. Must be suffering from brain des(in)formation through years of playing his 'wrongly' tuned weltempered piano.

Professional disoriented hearing. Also why fretless instruments like violins, ouds, etc sound so much better, as the players intonate themselves according key and intonality.

Back in the early days of Midi i was teaching a Midi course at a technical university. We invited a wizzkid nerd into Midi, who demonstrated his Midi strings software that was correcting the 'proper' intonation to a more palatable type by correcting f.i. 3rds 6ths and 7ths automatically sort of according to key played. His classical midi files sounded a lot better, with hardware like Ensoniq had back then, capable of fine tuning pitch via polyphonic aftertouch. Still have two Ensoniq items capable of that. But i must confess, i am too lazy, and not much more into filmmusic scoring. And i wonder if all those modern software VSTs are capable of doing that, unless you give each note it's own midi channel and pitch bend instructions. Done that with Cubase's logical editor in the past. Tons of work.