Music by Kevin MacLeod. Available under the Creative Commons Attribution 3.0 Unported license. Download link: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100541

MacLeod's description:

Genre: Soundtrack
Length: 1:45
Instruments: Bassoon, Bass Clarinet, Oboe, Clarinet, Trombones, Violins, Basses,
Tempo: 76

Horns used in the background. Main melodies carried by clarinet and strings. Starts off bright, ends darker. 043
ISRC: US-UAN-11-00541
Bright, Dark, Mysterious, Suspenseful 2009