How to read tablature? 
TAB:

xA|------0----|-----------|------0----|-----------|--5---5----|--2--------|
xE|--3-----3--|--0--------|--3-----3--|--0--------|-----------|-----------|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|--3---3----|-----------|--0---0----|--3---2-0--|------0----|-----------|
xE|-----------|--3--------|-----------|-----------|--3-----3--|--0--------|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|--0---0----|--3---2-0--|------0----|-----------|--5---5----|--8---5----|
xE|-----------|-----------|--3-----3--|--0--------|-----------|--------7--|
xC|-----------|-----------|-----------|-----------|-----------|-----------|
xG|-----------|-----------|-----------|-----------|-----------|-----------|

xA|-----------|--7--------|--3--------|-----------|-----------||
xE|--8--------|-----------|------3-0--|--3---1----|-----------||
xC|-----------|-----------|-----------|--------2--|--0--------||
xG|-----------|-----------|-----------|-----------|-----------||


CHORDS:

Db            Db
Silent night, holy night
Ab            Db
All is calm, all is bright
Gb               Db
Round yon Virgin Mother and Child
Gb             Db
Holy Infant so tender and mild
Ab7                Db
Sleep in heavenly peace
Db       Ab7       Db
Sleep in heavenly peace
Db            Db
Silent night, holy night!
Ab               Db
Shepherds quake at the sight
Gb                  Db
Glories stream from heaven afar
Gb                  Db
Heavenly hosts sing Alleluia!
Ab7                     Db
Christ, the Saviour is born
Db          Ab7         Db
Christ, the Saviour is born
Db            Db
Silent night, holy night
Ab           Db
Son of God, love's pure light
Gb                 Db
Radiant beams from Thy holy face
Gb               Db
With the dawn of redeeming grace
Ab7                  Db
Jesus, Lord, at Thy birth
Db     Ab7           Db
Jesus, Lord, at Thy birth