AOR is an abbreviation of Album Oriented Rock, originally an American FM radio format focusing on album tracks by rock music artists rather than singles releases.
In some markets the term AOR was re-positioned as Adult Oriented Rock, implying that 'adults' were more likely to buy albums rather than singles.
Some notable AOR bands:
- REO Speedwagon
I am sure that all three of the Deliverance albums listed above fit into this category, but acknowledge that Give It A Try may be too 70's mellow to be able to stand in the same class as the groups listed above.