question: will I be able to read/write the album artist?

[andrewrk]

the README says that these fields are available:

title (string)
album (string)
comment (string)
artist (string)
track (string)
year (integer)
genre (string)

Is it possible to get other fields, such as album artist?

[nikhilm]

node-taglib supports what TagLib's Tag class supports - http://taglib.github.io/api/classTagLib_1_1Tag.html
That said, it is possible to extract extra properties using Tag::properties() but node-taglib does not expose that yet. Patches are welcome.