@mike If you are looking for users interested in providing feedback on the classical Daily Mixes, then count me in. As others have already stated, focusing on single tracks/movements by a chosen performer is problematic for classical music, although I am definitely enjoying the Jazz and Rock mixes.
Would be great if there was some way to design an interactive classical mix generation tool that could take user input from a menu of variables: period, composer, genre, featured instrument(s), conductor, performer, Hi Res only, etc.
Are you working with a user group on this? If so, how can I join?