Intro goes like this:
---------------------|--------------------------------------
---------------------|--------------------------------------
----2----2---2-----2-|--------------------------------------
----2----2-----------|--------------------------------------
-0----0--------3h4---|--------------------------------------
---------------------|--------------------------------------
Verse goes like this:
------------------------------------------------|-----------
------------------------------------------------|-----------
--2--2-4--4-2--2-4--4-2--2-4--4-2-5--Intro lick-|-----------
--0--0-0--0-0--0-0--0-0--0-0--0-0-5-------------|-----------
----------------------------------3-------------|-----------
------------------------------------------------|-----------
The pre-chorus part is:
-----------------------(0)-(0)------------------------------
------------3--3-3-----(0)-(0)--------3---------------------
------------2--2-2--2-----------5--0--2--Intro lick---------
------2--2--0--0-0--2---2---2---5--0--0---------------------
------2--2----------0---2---2---3---------------------------
--3b4-0--0--------------0---0------3------------------------
[ Tab from: https://www.guitartabs.cc/tabs/b/boston/smokin_tab_ver_2.html ]
The chorus goes: 1.2.
------------------------------------------------------|-|--|
---------------------------3-3------------------------|-|--|
--4b6b4p2---2-2--4b6b4p2-2-2-2---5-5--7-7\----------2-|2|0-|
----------4-2-2----------0-0-0---5-5--7-7\--2h4p2---2-|2|0-|
------------0-0------------------3-3--5-5\--------3-0-|0|--|
------------------------------------------------------|-|3-|
The 1. and 2. means that the A power chord gets played first time
through, and the G gets played second time. After the first chorus,
we go back to the intro/verse stuff. After the second chorus, we
go to the bridge/solo:
----|--------------|-------------|--------------------------
--3-|---5--7-------|-------------|--------------------------
--2-|---5--7--vamp-|--intro vamp-|--------------------------
--0-|---5--7-------|-------------|--------------------------
----|---0--0-------|-------------|--------------------------
----|--------------|-------------|--------------------------
The vamp stuff just means play random riffs along the mentioned
motiffs. It's very improv. The solo ends with:
------------------------|----------------------|------------
------------------------|----------------------|------------
--2---------------------|-3--2--0--2--3--2-0-2-|------------
--2---------------------|-3--2--0--2--3--2-0-2-|------------
--0---0--0-0--0-0-0-0-0-|-1--0-----0--1--0---0-|------------
------------------------|-------3----------3---|------------
--------------------------------|------------|------------|-
--------------------------------|------------|------------|-
--0-----------------2-----------|-intro vamp-|-verse vamp-|-
--0--3--------------2-----------|------------|------------|-
-----3-----5--3--1--0--2.....-0-|------------|------------|-
--3--1--0-----------------------|------------|------------|-
