A record producer is an individual working within the music industry, whose job is to oversee and manage the recording (i.e. "production") of an artist's music.

Audio editing is the process of taking recorded sound and changing it directly on the recording medium (analog) or in RAM (digital). wikipedia.org

MIDI is an industry specification for encoding, storing, synchronizing, and transmitting the musical performance and control data of electronic musical instruments (synthesizers, drum machines, computers) and other electronic equipment. wikipedia.org

Mastering, a form of audio post-production, is the process of preparing and transferring recorded audio from a source containing the final mix to a data storage device (the master); the source from which all copies will be produced (via methods such as pressing, duplication or replication). wikipedia.org

Adobe Audition (formerly Cool Edit Pro) is a digital audio workstation from Adobe Systems featuring both a multitrack, non-destructive mix/edit environment and a destructive-approach waveform editing view. wikipedia.org

Sibelius is a scorewriter program for Microsoft Windows, Mac OS X, and RISC OS. It is used by composers, arrangers, performers, music publishers, teachers and students, particularly for writing classical, jazz, band, vocal, film and television music. wikipedia.org

An arrangement of a musical composition is a reworking of a piece of music so that it can be played by a different instrument or combination of instruments from the original. wikipedia.org

Instrumentation is defined as the art and science of measurement and control of process variables within a production or manufacturing area. wikipedia.org

Orchestration is the study or practice of writing music for an orchestra (or, more loosely, for any musical ensemble, such as a concert band) or of adapting music composed for another medium for an orchestra. wikipedia.org