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An introduction to GCSE-level music technology, covering DAWs, MIDI versus audio, microphones and studio effects.
A DAW is software used to record, edit, arrange and mix music digitally, such as Logic Pro, GarageBand or Ableton Live. DAWs let composers and producers layer multiple tracks, edit timing and pitch, and apply effects, making them central to both composing and music production tasks at GCSE.
MIDI (Musical Instrument Digital Interface) data stores performance information — such as pitch, timing and velocity — rather than an actual recorded sound, meaning MIDI notes can be edited freely and reassigned to different instrument sounds. Audio tracks, by contrast, are recordings of actual sound waves, which can be edited in terms of timing and volume but cannot have their pitch changed as flexibly as MIDI without affecting quality.
Different microphones suit different recording situations. Dynamic microphones are durable and good at rejecting background noise, making them popular for live vocals and loud sound sources such as drums or guitar amplifiers. Condenser microphones are more sensitive and capture greater detail, making them a common choice for studio vocal and acoustic instrument recording.
Reverb simulates the natural reflections of sound in a space, adding a sense of depth or room ambience. Compression reduces the difference between the loudest and quietest parts of a signal, evening out the dynamic range so a performance sounds more consistent. Equalisation (EQ) boosts or cuts specific frequency ranges to shape the tone of a sound, for example reducing muddiness in a bass part or adding clarity to a vocal.
Sequencing is the process of arranging and editing musical events — MIDI notes or audio clips — along a timeline within a DAW. Quantising automatically snaps MIDI notes to a rhythmic grid to correct timing, while panning positions a sound within the stereo field to create width and separation between instruments.