The band was made up of Tommy Lyons (lead guitar - Tommy played with a number of bands over the years and is still active in the Thurles area where he teaches guitar at the Tipperary Institute), Johnny Dunne (who had been associated with Hawkwind in the UK and now has a small recording studio near Thurles), bass player Robbie Fogarty and his brother Nicky on drums.
Pyramid were extremely popular in the Munster area and also toured the UK and Europe. Their main influence was Santana (they covered a number of Santana tracks and their original songs were similarly styled). Great live band.
(Thanks to Des for notes on Pyramid)