This is my first contribution to the site, so bear with me here.
 I was looking at the tab on here for the bass solo to Liar by Queen, and let's face it, 
it's COMPLETELY off.
So over the course of an afternoon I worked it out to what I believe to be as close as 
possible, hopefully you guys will agree.

At about the 4:57 mark (at the end of the "All day long" bit), the bass goes into the 
following little riff:

G |-----------------------------------------|
D |-----------------------------------------|
A |--------------------------------7-5-7----|
E |-3-0-0---0-3-0-0---0-3-0-0---0-----------|

Play the above three times, then it goes into this bass run:

G |--------------------------8-----|
D |---------------9--11--12--------|
A |-7--9--10--12-------------------|
E |--------------------------------|

This leads into the infamous bass solo itself:

G |-9--11--12--11--9--11--12--11--9--11--12--11--9--11--12--11------|
D |-----------------------------------------------------------------|
A |-----------------------------------------------------------------|
E |-----------------------------------------------------------------|

This is repeated three times, then ends with a final bass run:

G |--9--7--5--4--2--0----------------------------------------|
D |---------------------4--2--0------------------------------|
A |-------------------------------3--2--0--2--0---------2----|
E |-----------------------------------------------3--2-------|

Hope you guys enjoy, let me know if there are any changes you would suggest!