Julie Andrews sang it as the sixth tone of the diatonic scale
Tune 
the fifth string down an octave (d') from the fourth and a sixth string ..... is, How 
joyful then I shall be/I shall sing with the angels/and ...... Aindrias Hirt, 2012 
edition (St. Andrews, Canada: Sol ... For example, Julie Fowlis sang the song 
Tha mo.