Just a quick note for Classical enthusiasts, with SongKong we have been working
very hard to solve metadata management of Classical, screenshot shows some of the options to give a flavour of what can be done.
SongKong understands work and movements, soloists, conductors, choirs, ensembles and orchestra are all individually identified, it does sensible things with the composer such as not putting it into the artist field, please take a look.