The song „All I Need“ by Jacob Collier is a medium disco-ish influenced R&B-Funk-Pop Song featuring Mahalia and Ty Dolla $ign.
In this article I will analyze the song by listening to it and zooming into the spots that trigger some sort of emotional response in me and by using Jacob Colliers Youtube video called LOGIC SESSION BREAKDOWN: „All I Need (with Mahalia & Ty Dolla $ign)“ as a reference and validation for my findings. For the purpose of making my analysis easier to read I will mark important keywords that correlate to used techniques in blue and the effect it has on me in orange.
These moments in the song stood out to me:
031) 0:01
→ Layered sounds (Logic mellotron + Keyscape Toy Piano + Retrosynth mellow brass) with high and low cut + RC20 plugin and LFO-Tool on it
→ organic, unique and interesting sound/texture
032) 0:10
→ Slapbass (Trilian: Hardcore Funk Slide Down) entering with a lot of volume and high frequencies contrasts the previous sound
→ contrast, surprise as a statement
033) 0:20
→ Call and response vocal lines in between phrases („there must be something…“, „hello“)
→ feels conversational, alive
034) 0:25
→ Backings („The way that…“) in low register harmony with low cut
→ creates a warm texture but without distracting from the lead vocal
035) 0:34
→ Kicks without pad/backings/synth
→ contrasts the dense arrangement, sounds empty
036) 0:44
→ Backings: harmony without lead voice leading into verse two
→ opens up the sound
037) 0:48
→ Backings: Male voice doubles female lead an octave lower
→ makes a higher, thinner voice feel strong and supported
038) 0:57
→ Bells in background
→ gives an „airy“, open feel
039) 1:19
→ rhythmical synth (Omnisphere: Prince Combo Comp Brite) sidechained to kickdrum, doubled by vocals with two different LFO shapes layered
→ disco-like, makes me want to dance, „razor-clean“ rhythmical sound
040)1:20
→ synth bass playing syncopated transitions between bass notes + side chained to kick by LFO-Tool
→ drives the groove forward, creates movement, energy
041) 1:20
→ Three different snare sounds layered, no reverb
→ sounds snappy, interesting texture
042) 1:37
→ thick vocal harmonies with chromatic voice leading as transition between chorus and verse (different energy levels)
→ makes me feel lost, like falling into the next part
043) 2:05
→vocal pyramids, chimes, „ahh“-sound create different sound layers
→ feels like a lot is going on, unexpected and interesting sounds in a dense mix
044) 2:15
→ modulation to a different tuning (b-half sharp)
→ throws me into a different universe, lifts energy
045) 2:25
→ backings: very high vocal note, octave jump upwards
→ creates euphoric atmosphere
046) 2:40
→ high synth note
→ creates euphoria in me, makes the atmosphere glow
047) 2:57
→ fast changing harmony with chromatic voice leading followed by simple, diatonic, slow moving harmony
→ feels like falling/losing orientation and then being caught again
Because the song has so many different backing vocals with various different functions I tried to analyze them by categorizing them only by listening in the context of the whole mix:

Use of vocals:
– Lead vocal mostly dry sound without reverb, presence changes many times throughout the song
– Backings sound mostly natural (no reverb, no high cut), variety through vocal technique, diverse functions and different types of backing vocals keeps the colorful arrangement always interesting and unpredictable
– still an excessive use of backings supporting lead and answer phrases is noticeable
– voice used to create special effects (kissing, screaming, breathing) makes the song feel human and natural
General remarks:
– Sounds are often either layered and heavily processed to create new textures or rather natural like most of the vocals
– The song is more like a collage of a broad variety of sounds surrounding a song (e.g. gongs, bells, synths, bubbles, strange and unusual voice sounds, vinyl crackle)rather than a „band in a room“ performing
→ Arrangement: strong use of contrasts in various dimensions (full-empty, frequencies, harmonic density) adds an element of surprise and keeps the listener involved