All it
is is an open Dsus2 chord with hammer-ons to the G and then the A string...
HANGING TREE
----|-0-----0---0-0-----0-----0---0-0-0---0-----0---0--------0---------0--|----|-3-----3---3-3-----3-3---3---3-3-3---3-----3---3-3------3-----3---3--|--0-|-2---2-2---2-0^2---2-2---2---2-2-0^2-2-2---2---2-0----0--------------|--0-|-0---0-------0-------0---------0-0-----0-------0-0--3-----2----------|--3-|---------------------0------------------------------------------3----|----|---------------------------------------------------------------------|
--0-----0---0-0-------0---0-0---0-|-0-0----0-0-----0---------0--|--3-----3---3-3-----3-3---3-3---3-|-3-3----3-3-----3-----3---3--|--2---2-2---2-2-2---2-2---2-2---2-|-2-2----2-0---0--------------|------0---------0---0-----0---0---|---0-0------3-----2----------|------0---------0^3-----------3---|-----0^3----------------3----|----------------------------------|-----------------------------|