"Once Upon a Time" by Robert Bradley's Blackwater Surprise
From the album "Robert Bradley's Blackwater Surprise"

Bass Tablature by: Micbass

----
Keep in mind that the parts below are the basic groove 
of the tune. As usual, feel free to improvise around the 
chord changes. But on this particular song, less is more. 
Also keep in mind that on this tune (and most Motown/R&B 
songs) many of the passing tones and chromatic runs happen 
between the sixteenth notes. The rhythm markings below the 
tab are not meant to be exact. Think James Jamerson.
---- 

Intro & Verses 

  A       F#m      Bm7     A        
G|----------------|----------------|
D|----------------|----------------|
A|----------------|2---------------|
E|5-------2-2---5-|--------5-5-----|
 |1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|
 

First (partial) Chorus

  E                Bm7     D        A
G|----------------|----------------|----------------|
D|----------------|----------------|----------------|
A|7---7---7-------|------5-5-------|----------------|
E|-------7-70--050|7-------------7-|5---------------|
 |1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|


Second Chorus

  E                Bm7     D        A                F#m
G|----------------|----------------|----------------|----------------|
D|----------------|----------------|--------7-------|-------24-----4-|
A|7---7---7-------|--------5-5--5--|------7---------|-----4----------|
E|-------7-70--056|7---7--5-5----74|5-5---------5--x|2-2-------------|
 |1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|

  E                Bm7     D        A
G|----------------|----------------|----------------|
D|2---2---2-------|----------------|----------------|
A|-------2-2-----0|2----0245---54--|----------------|
E|----------0--02-|-----------5--7x|5---------------|
 |1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|


Final Chorus 

  E                Bm7     D        A                F#m              E
G|----------------|----------------|----------------|----------------|-
D|----------------|----------------|----------------|----------------|-
A|7---7---7-----01|2----0-25-5--x5-|----------------|------24--------|-
E|-------7-70--0--|---------------0|5---5--05x5----x|2-------2-----2-|0 etc.
 |1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1e+a2e+a3e+a4e+a|1


x - muted string grace note

Structure:

Intro
Verse
First (partial) Chorus
Verse
Second Chorus
Verse
Final Chorus (5x) - on the 5th time, end on the A chord