Opeth — Blackwater Park bass tabs

h   — hammer—on
 p   — pull—off
 b   — bend
 pb  — pre—bend
 r   — bend release (if no number after the r, then release
immediately)
 /  — slide into or out of (from/to "nowhere")
 ~   — vibrato

The timing throughout the song should be exact.
The tuning is drop—d: D,A,D,G
The rhythm: Quadruple time, 4/4

Intro: [00:00]

G————|————————————————|
D————|————————————————|
A————|————————————————|
D————|3———————————————|