Each Fatui Harbingers' Personal Leitmotif (Up to Version 6.6)
Each Harbinger has their theme, here I compiled all their motifs and an example of when it plays during their spotlight. There are many more times their theme is played throughout the game that I didn't include.
Timestamps
00:00 Intro
00:02 11th - Tartarglia
00:57 Tartarglia (Foul Legacy)
01:35 9th - Pantalone
02:16 8th - La Signora
03:25 7th - Sandrone
03:58 Sandrone (Pulonia)
04:34 6th - Scaramouche
05:50 The Wanderer
06:47 4th - Arlecchino
08:40 Columbina Hyposelenia I
10:19 Columbina Hyposelenia II
12:58 2nd - The Doctor (Nod-Krai)
14:48 2nd - Il Dottore (Sumeru)
16:59 1st - Il Capitano