Ar Hyd y Nos (All Through the Night).  Key:  F.  Time: 4/4.
Traditional Welsh melody, known best as a lullabye but a variety of
hymns have been set to it, usually in F.  I play it in G but have tabbed it
in F to stick with tradition.  The melody (includes the high notes of the
chords) sounds great in either key; I think the alternative chording for
measures 5 and 6 of Part B sounds better in G.

The first notes of measures 3, 4 and 5 of the B part are dotted, which I have
tried to indicate by placing the subsequent note off the beat.


       F       Bb       Gm     C          Bb      C          F
-----|-1-----0------1--|-3-----1---------|---------0-----0-|-1---------------||
-----|-0-------5-------|-1-------0---3---|-5-------3-------|-0------------- o||
-----|-3---------------|-------------2---|-3-------2-------|-3------------- o||
-----|-5---------------|-----------------|-3---------------|-5---------------||
       |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_


       Bb  F   Bb  F     Gm  F   Bb  f     Bb     Gm   F     F   C   F   C

     |-6---5---6---8---|-10--8---6---5---|-6----5--3---1---|-5----3--1---0---|
     |-5---------------|-------------3---|-5-----------0---|-3-----------3---|
     |-3---------------|-------------3---|-3-----------3---|-3-----------2---|
     |-----------------|-----------------|-------------5---|-----------------|
       |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_


       F       Bb
                         G       C         Bb      C         F
-----|-1----0--------1-|-3-----1-0-------|---------0------0|-1---------------|
-----|-0-------5-------|-2-----------3---|-5-------3-------|-0---------------|
-----|-3-------3-------|-------------2---|-3-------2-------|-3---------------|
-----|-5-------3-------|-----------------|-3---------------|-5---------------|
       |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_


As an alternative to measures 5 and 6 of the B part, play

     |-1---1-----------|-----------------|-----------------|-----------------||
     |-0---0---5---5---|-5---5---3---3---|-----------------|-----------------o|
     |-3---3---3---3---|-5---5---2---2---|-----------------|-----------------o|
     |-5---5---3---3---|-4---4---5---5---|-----------------|-----------------||
       |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_


If you want to play the first part of B all chords:


       Bb  F   Bb  F     Gm  F   Bb  f    Bb   F   Gm   F    F   C   F   C

     |-6---5---6---8---|-10--8---6---5---|-6----5--3---1---|-5----3--1---0---|
     |-5---3---5---8---|-10--8---5---3---|-5----3--1---0---|-3----3--0---3---|
     |-3---3---3---7---|--8--7---3---3---|-3----3------3---|-3----2--3---2---|
     |-----------------|-----------------|-------------5---|---------5---5----|
       |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_    |_ _|_  |_ _|_