Intro and Verse#1:  Bass tacet.

(Bass enters when Dennis sings "To carry on.")

    G+---------+---------+---------+---------+
(4) D|---------|-0-------|-2-------|-0-------|
(4) A|-3-------|---------|---------|---------|
    E+---------+---------+---------+---------+
       1 2 3 4   1 2 3 4   1 2 3 4   1 2 3 4 

G+---------+---------+
D|---------|---------|
A|-3-------|---------|
E+---------+-3-------+
   1 2 3 4   1 2 3 4

Verse#2:

G+----------+---------+---------+---------+-----------------+
D|:---------|---------|---------|---------|---------------3-|
A|:-3-------|-2-------|-0-------|-----0---|---------3-------|
E+----------+---------+---------+-------3-+-1---------------+
    1 2 3 4   1 2 3 4   1 2 3 4   1 2 3 4   1 & 2 & 3 & 4 &  

G+-----------------+-----------------+------------------+
D|-3---------------|-5---------------|-----------------:|
A|---------------3-|---------5-------|-------------0-2-:|
E+-----------------+---------------3-+-3----------------+
   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &  
(Repeat 2X)

   "Lived happily forever . . .
G+-----------------+-----------------+
D|:--------------7-|-7---------------|
A|:--------7-------|---------7-------|
E+-5---------------+-------------5---+
   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 & 

G+-----------------+-----------------+
D|---------------5-|-5--------------:|
A|---------5-------|---------5------:| (Repeat 2X)
E+-3---------------+-------------3---+
   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &
[ Tab from: https://www.guitartabs.cc/tabs/s/styx/come_sail_away_btab.html ]
G+---------+---------+---------+---------+
D|---------|---------|---------|---------|
A|-3-------|-2-------|-0-------|-----0---|
E+---------+---------+---------+-------3-+
   1 2 3 4   1 2 3 4   1 2 3 4   1 2 3 4

G+-----------------+-----------------+
D|-----------------|-----------------|
A|-----------------|-----------------|
E+-1-1-1-1-1-1-1-1-+-3-3-3-3-3-3-3-3-+
   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &

Chorus:  (C-notes through-out)

G+----------+------------------+
D|:---------|-----------------:|
A|:-3-------|-3-----3---3---3-:| (Repeat 8X)
E+----------+------------------+
    1 2 3 4   1 & 2 & 3 & 4 &

G+------------------+------------------+
D|:-----------------|-----------------:|
A|:-3-----3-3-----3-|---3---3-3---3---:| (Repeat 7X)
E+------------------+------------------+
    1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &
Bridge:

G+------------------+------------------+
D|:-6-4-----6-4-----|-6-4---4---4---4-:|
A|:-----6-------6---|-----------------:| (Repeat 4x)
E+--------4-------4-+------------------+
    1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 & 

(Repeat until last note, then hold last note for segue.)
G+-------------------+---------+
D|:-----6-------6---:|---------|
A|:---6---6---6---6-:|---------|
E+--4-------4--------+-4_______+
    1 & 2 & 3 & 4 &    1_2_3_4_

Repeat Chorus (with slides down (\) from C-notes)

G+----------+------------------+
D|:---------|-----------------:|
A|:-3-------|-3\----3\--3\--3-:| (Repeat until Outro)
E+----------+------------------+
    1 2 3 4   1 & 2 & 3 & 4 &

Outro (from live albums)

G+-----------------+-----------------+---+---+---+
D|-------0-----2---|-3-----2---------|---|---|---|
A|-3---------------|-------------3---|---|---|-3-|
E+-----------------+-----------------+-4-+-1-+---+
   1 & 2 & 3 & 4 &   1 & 2 & 3 & 4 &   
(Keep hammering those last three notes for as long as the band holds the 
chords.)

Ending
G+---------------+---+
D|:-------------:|---|
A|:-3-3-1-3_____:|-3-|
E+---------------+---+