However, while performing in Hamburg in Germany, they met and befriended the Beatles and in 1963 signed to Brian Epstein's management company, NEMS.
The group's third Columbia single, a version of the "William Tell Overture", was included and turned out to be their greatest success in Australia, where it reached number 2.
Sounds Incorporated's continuing popularity ensured a stream of work, including backing duties at the televised NME awards.
1966 was the first year the group released no singles in their home country, although they recorded a second album, again simply titled Sounds Incorporated.
Any singles taken off the LP for foreign markets were in that format's standard mono, however, making these unusual items for UK collectors of the group.
Drummer Tony Newman, known for his long solos, left to work as a session musician and at one stage joined the Jeff Beck Group.
For the remaining members of Sounds Inc., Cameron's departure for a career in A&R left a gap, which was filled by Terry Fogg (percussionist and drummer) and Trevor White, the band's first true vocalist.
They also appeared in Pop Gear, a music revue film made in colour, which has been released on video in recent years.