These could include movement, sequence, opus, or thematic catalog numbers.
The opus number is the "work number" that is assigned to a musical composition, or to a set of compositions, to indicate the (approximate) chronological order of the composer's production. It is often abbreviated as 'op.'
A thematic catalog (or thematic index) is a list of a composer's works. Most will include all of the relevant information to locate the work along with an 'incipit' or musical representation of the theme(s) of the work--hence 'thematic catalog'. Many thematic catalogs use the opus number, but some use a different numbering system. Examples of some common thematic catalog number prefixes include:
You can often find thematic catalog numbers using the "works" section at the end of composer entries in The New Grove Dictionary (or Grove Music Online).
Some pieces are described using the key that they are written in. For example:
Keys are sometimes expressed in their original language as well, e.g. C-sharp Minor, F Major, B-flat Minor, D-Dur, A-Moll, etc.
Terms in other languages can be found in Music translation dictionary
Knowing the instrument(s) or ensemble groupings that a work was written for:
e.g., string quartet, wind band, violin (solo), brass quintet, symphony orchestra, etc.
Remember: Sometimes works are arranged or transcribed for an instrument or instruments other than those for which the piece was originally written. This is helpful information to know when you are trying to find a score.
Scores in Trexler Library are classified according to the instrumentation of the score "in hand," NOT the original instrumentation. Therefore an orchestral piece arranged for piano would be classified along with other piano works, while the original would be located with orchestral pieces.
Scores are sold in many formats for different purposes:
For more information on score formats and editions, see the "Music Editions" tab.
Don't forget --
Encompass Search uses KEYWORD searching, so your search will locate records with all of your search terms anywhere in the record, and not necessarily in the order you want.
For more information on Truncation or other Advanced Searching Techniques in Encompass Search see our "Guide to Encompass Search"