Akumajou Densetsu Music (FC VRC6) - Clockwork

Track 7 / 25 (Complete Soundtrack)

Akumajou Densetsu
Akumajō Densetsu (alt)
悪魔城伝説
Castlevania 3 (JP)

Platform: Nintendo Famicom
Developer, Publisher: Konami
Composer, Sound: Yoshinori Sasaki, Jun Funahashi, Yukie Morimoto
Year: 1989

Tracklist:
1 - Prelude
2 - Epitaph
3 - Prayer
4 - Beginning
5 - Boss Fight
6 - Destiny
7 - Clockwork
8 - Encounter
9 - Mad Forest
10 - Anxiety
11 - Rising
12 - Stream
13 - Dead Beat
14 - Nightmare
15 - Aquarius
16 - Demon Seed
17 - Deja Vu (Vampire Killer)
18 - Riddle
19 - Pressure
20 - Overture
21 - Big Battle
22 - Blk Clear + All Clear
23 - Player Lost + Game Over
24 - Evergreen
25 - Flash Back

This is the complete soundtrack to the Japanese version of Castlevania III. It made use of the VRC6 chip, a special mapper developed by Konami that allowed for 3 extra channels of sound. With two extra pulse waves (that had 8 available duty cycles as opposed to the standard 4), and a sawtooth wave on top, Akumajou Densetsu sounds distinct amongst most other Famicom + NES titles. Madara and Esper Dream 2 are the only other Famicom games that also used the VRC6 for sound expansion.

Fun fact- Hidenori Maezawa, one of the composers and sound programmers for Contra (NES), helped develop the VRC6 chip. You can read more about the VRC6 and other mappers here-
http://en.wikipedia.org/wiki/Multi-Memory_Controller#VRC6