C Major (or A minor)
major
The typical melody range for a soprano singer is from middle C (C4) to high C (C6).
The chords in the key of C minor are C minor, D diminished, E major, F minor, G minor, A major, and B major.
The chords that go with C minor are C minor, D diminished, E major, F minor, G minor, A major, and B major.
IMSLP.org
No, it's a fugue.
C Major (or A minor)
Is the oorgan polyphonic in toccata and fugue d minor
It's in the form of a FUGUE.
If you are referring to the Prelude and Fugue no 1 in C major that opens The Well Tempered Clavier I it is in C Major.
prelude and Fugue in C Minor from The Well-Tempered Clavier Book II
There are no music terms used in the Little Fugue in g minor (BWV 578).
Fugue #2 in C Minor" from The Well Tempered Clavier
Adagio and Fugue for strings in C minor - W A Mozart
A fugue features a single theme, the "subject," that is introduced and then imitated in different voices, creating a complex polyphonic texture. In contrast, a canon involves the repetition of a melody in different voices, with each voice entering at a set time interval and playing the same melody, creating a layered effect. Ultimately, a fugue is more rhythmically and harmonically complex than a canon.
The word "fugue" is usually used as a musical term. It refers to a piece of music which consists of two or more parts, each with a similar melody. Bach was noted for his fugue compositions.