@SW-User I don't think so. I've seen it spelt like that before referring to that song. I'm 99% sure it's spelt like that on the pub jukebox.
SW-User
@HairbrushDiva That's so strange. I've never seen it spelt that way until this video you posted, or maybe I have... I'm gonna have to look up some stuff now.
edit: I found this...
Little Solsbury Hill (more commonly known as Solsbury Hill) is a small flat-topped hill and the site of an Iron Age hill fort. It is located above the village of Batheaston in Somerset, England. The hill rises to 625 feet (191 m)[2] above the River Avon which is just over 1 mile (2 km) to the south. It is within the Cotswolds Area of Outstanding Natural Beauty. It gives impressive views of the city of Bath and the surrounding area. The hill was immortalised in 1977 by Peter Gabriel in his song 'Solsbury Hill'.
It is sometimes misspelled as Salisbury, or Solisbury, perhaps because of confusion with Salisbury Plain (a plateau in southern England), or the city of Salisbury. Salisbury and Solsbury can be difficult to distinguish in speech, as Salisbury is often pronounced "Saulsbury" and sometimes the "a" in "Salisbury" is pronounced as an "o", and the "i" is elided, making the pronunciations of the two words practically identical. The name Solsbury may be derived from the Celtic god Sulis, a deity worshipped at the thermal spring in nearby Bath.