Sample, loop and drum machine
A sample is a short captured snippet of recorded audio reused in a new track; it may play once or many times and does not repeat automatically. A loop is audio or a pattern set to repeat continuously and seamlessly — often built from a sample, but it can be a pure MIDI pattern with no captured audio. A drum machine triggers drum and percussion sounds from a programmed pattern, sounding exact and mechanical (a hallmark of EDM).
Reverb vs delay
Reverb simulates the reflections of a physical space, adding a diffuse, decaying tail of blended reflections — a dry sound feels close, a wet one large and distant. Delay produces one or more discrete, separately-timed repeats (echoes) you can count and time, from a single slapback to a rhythmic pattern. Reverb models the acoustic space itself; delay models distinct, timed repetitions of the sound.
Overdub, double-track, multi-track
Multi-tracking is the studio technology of recording separate parts onto separate tracks, mixed together afterwards — it makes the other two possible. Overdubbing is recording a new part while listening back and layering it on top; the new part is usually different material. Double-tracking is one type of overdub: the same part recorded twice, the takes layered so tiny natural differences thicken the sound.
Drawn from real examiner reports.
Chorus effect ≠ chorus section
The chorus effect thickens a sound by mixing it with slightly delayed, detuned (pitch-modulated) copies, imitating several voices on one part. The chorus section is the repeated part of a song carrying the hook, alternating with verses. A production question means the effect; a song-form question means the section — say which, or lose the mark.
Double-tracking ≠ overdubbing
Double-tracking specifically means recording the SAME part a second time and layering the two takes to thicken it. If the new layer is a different part — a harmony line or countermelody — the correct term is overdubbing, the general act of adding any new layer. Do not call every overdubbed layer double-tracking; it is only the same-part-twice case.
A sample is not a loop
A sample is captured audio; a loop is audio or a pattern set to repeat on a cycle — different things (what the audio IS versus how it is USED). A sample need not repeat, and a loop need not be a sample (it can be a purely programmed pattern). A loop is often built from a sample, but the terms are not synonyms.
Multi-tracking is not an effect
Multi-tracking is not an audible effect — it is the recording technology of putting separate parts on separate tracks. Naming it where a question asks which EFFECT was used scores nothing: the audible effects are reverb, delay and the chorus effect. It is what makes overdubbing and double-tracking possible.
Name the device, not vague impressions
A mechanically precise, programmed percussion part should be named a drum machine, not called vaguely electronic drums or computer sounds. The mark scheme rewards the specific term — the same applies to a repeating pattern (a loop) and a reused snippet (a sample). Use the syllabus term, not a general impression.
Reverb and delay are different effects
Everyday speech treats echo and reverb as one thing, but they are different effects. Delay gives discrete, separately-timed repeats you can count; reverb gives a continuous, diffuse decaying wash simulating a room or hall. A track may use one, the other or both (a slapback delay plus a hall reverb) — say which effect is doing what rather than calling it all echo.
Syllabus term list; no examiner-report precedent (digest Section 1)
Name it, then say what it does
Do not write a vague they used effects. Name the precise term — reverb, delay, a loop, a drum machine, the chorus effect — then say what it does to the sound, e.g. reverb gives the vocal a hall-like decay. That second half is where the marks are.
Heard, not memorised
Credit is given only for features you can justify from the extract, not ones typical of the genre. Do not list every production term you know — name only those the recording gives clear evidence for; unheard typical features earn nothing.
Justify which effect you can hear
Where two similar techniques could apply — reverb and delay, or an overdub that is really double-tracking — name only the one you can hear, not both to be safe. A smooth continuous tail is reverb; distinct, countable repeats are delay.
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