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:

Ab            Ab
Silent night, holy night
Eb            Ab
All is calm, all is bright
Db               Ab
Round yon Virgin Mother and Child
Db             Ab
Holy Infant so tender and mild
Eb7                Ab
Sleep in heavenly peace
Ab       Eb7       Ab
Sleep in heavenly peace
Ab            Ab
Silent night, holy night!
Eb               Ab
Shepherds quake at the sight
Db                  Ab
Glories stream from heaven afar
Db                  Ab
Heavenly hosts sing Alleluia!
Eb7                     Ab
Christ, the Saviour is born
Ab          Eb7         Ab
Christ, the Saviour is born
Ab            Ab
Silent night, holy night
Eb           Ab
Son of God, love's pure light
Db                 Ab
Radiant beams from Thy holy face
Db               Ab
With the dawn of redeeming grace
Eb7                  Ab
Jesus, Lord, at Thy birth
Ab     Eb7           Ab
Jesus, Lord, at Thy birth