Played it around the end of the 80's but most probably developed between 1981 and 1986. You had control over a person/avatar (not stick figure like, more plump looking) and could walk from scene to scene; these locations (museum, plaza maybe) or rooms contained scattered items like masks, horns, pots, etc. and some wandering people (including a policeman in some places). It had a memorable tune but nothing I can compare it to. Possible use of Egyptian and/or British themes. A decades old mystery of mine, been searching from time to time and I'm starting to believe it was a figment of my young imagination.
Hmm, I was going to say potentially one of these ...
but then you said "top-down view" so that rules out "sidescrollers"
Next task is to go through Wikipedia's list of Apple 2 Games ...
I'm wondering if it was an action RPG along the lines of:
Any chance you remember any more details, such as the what size was the avatar? Or specific colors?