No instrument is better than another, and neither is any of the sixteen types. What matches is the behaviour: where it sits in the ensemble, when it sounds, and when it stays quiet. One instrument for each of the sixteen, as a metaphor and nothing more.
Double bass
WhyIt sounds as if nobody is listening, and yet everyone is standing on it. Low notes alone decide the frame.
In the ensembleThe moment it drops out, everything else starts to float.
Cello
WhyLooks at the next bar before deciding the note to play now. Never hurried, never wrong.
In the ensembleSilent wherever it is not needed. The longer the rest, the better its mood.
Trumpet
WhyOne signal and the whole ensemble changes direction. No hesitation about coming forward.
In the ensemblePlaying quietly is the one thing that stays on the practice list forever.
Jazz piano
WhyHas no intention of playing what is written. Opens a fixed progression onto another road, on the spot.
In the ensembleNever plays the same tune the same way twice, which makes it hard to record.
Viola
WhyNot the melody but the inside of the melody. Thin without it, unnoticed with it.
In the ensembleChooses, of its own accord, the seat where praise rarely arrives.
Harp
WhyOne note changes the time of the room. Works by resonance, not by speed.
In the ensembleFalls apart when hurried. Given time, it carries surprisingly far.
The voice
WhyNo instrument in between: it carries words and feeling directly, and changes how the listener breathes.
In the ensembleBetter with a larger audience. An empty room is the hardest thing of all.
Saxophone
WhyAt home in classical and in jazz. There is a seat for it in any line-up.
In the ensembleOnce the improvising starts it does not stop. Someone else has to decide the ending.
Timpani
WhyWhere to strike and how many times is fixed. It holds the notes that must not slip.
In the ensembleFew entrances, and yet the skeleton of the whole piece is decided here.
Pipe organ
WhyA bass that holds up the building itself. It does not move, and when it stops the air disappears.
In the ensembleIt never sounds for its own sake. It sounds for the place it is in.
Trombone
WhyThick, accurate, and still at full volume at the end. Supports the ensemble as a matter of work.
In the ensembleWhen the tempo slips, it is the first to start putting it back.
Horn
WhyThe sound that warms the room. Round when it is there; everyone notices the instant it misses.
In the ensembleA famously difficult instrument, played with a deliberately calm face.
Drums
WhyThe hands answer first; the reasoning arrives afterwards.
In the ensembleOffers no explanation. Play along and you will understand — that is the attitude.
Acoustic guitar
WhyMakes the room comfortable. Reaches you by closeness, not by size.
In the ensembleSounds better in a room than in a great hall.
Electric guitar
WhyTakes the space by volume. Distortion first, restraint learned later.
In the ensembleAt its best when someone who knows how to stop it is standing next to it.
Violin (solo)
WhyEyes turn the moment it stands up. It takes the room by presence rather than technique.
In the ensemblePut it on the accompaniment and it turns dull at once.
What an instrument suggests changes with the era and the genre. Here it is used only as a metaphor for behaviour inside an ensemble. Other metaphors: dog breeds, birds, football, vehicles, rooms.
The instruments are only the entrance. Pick your type and theirs, and you find which of the sixteen relations the two of you are in.
Pick the two types