"The same phenomenon (angelic singing) occured at the Dales Bible Week in 1977. On several evenings after the meeting was over and the auditorium vacated and locked up for the night, heavenly singing was heard coming from the building at two or three o clock in the morning. This was not only reported by those on site; people living in the houses near the site complained about the singing in the early hours of the morning!
During the same week there were several angelic appearances, particularly to the young. One six-year old boy lost in the crowd and anxiously awaited by his parents suddenly turned up full of smiles. When asked how he found his way, he replied 'Oh a nice ghost in a shiny coat showed me the way'.
During a time of testimony another lad of six was asked what he enjoyed most about the Bible Week. He replied; "I liked it best when all the angels came and flew around the children's meeting playing their trumpets and praising God".
David Mansell - "A Radical Goal for Radical Christians" in "Revive Us Again!" edited by David Matthew - Harvesttime (1990) - (pp101-102).