In this chapter we identify and describe some of the tasks and
issues involved in preparing electronic musical documents in the
Humdrum format. In general, the following discussion pertains to
the production of electronic documents representing musical
score information. However, the basic procedures are applicable
to any kind of data -- from sound recordings to historical
choreographies of ballets. Electronic editing entails
translating one representation into another representation. In
many cases, an electronic edition is prepared from existing
source documents -- such as printed scores or manuscripts. In
other cases, an electronic edition may be prepared from another
electronic form -- such as MIDI. When translating between two
formats, it is important to be familiar with both
representations. Descriptions of a number of popular electronic
music formats may be found in Eleanor Selfridge-Field's
encyclopedic Handbook of Musical Codes (1997). The principal
processes involved in electronic editing include ide