Songbird for classical music

Guys, you're doing a great job with Songbird. I am anxiously following the development. I would like to see Songbird more friendly to classical music. I know we're definitely not your largest audience. We tend to meticulously tag more information about every piece. Would like to see full support for custom tags, and the ability to filter and display these custom tags just like the standard ones. For example, on an average classical music piece I may tag title, movement, key, opus/catalog number, composer, year written, conductor, ensemble, all involved artists, instrumentation, genre, record year, digital/analog code, and sometimes I'll include reviews or other notes in a comments field.

I hope you will consider making Songbird a great tool for classical music lovers, too.