what is edgewinding, and are there tonal differences between aluminum and copper

[ELS122]

so I see on some 'professional' guitar speakers where it says "edgewound ribbon with aluminum wire" on many, is edgewinding just where the turns begin from the edge of the bobbin?
and also, is there some major tonal difference between aluminum and copper wire? I read online that aluminum since it weighs less will be more sensitive and have a higher frequency response, but that's for hifi speakers, maybe there's some other difference that makes it sound different in a guitar amp?

[CaptDon]

If you had two otherwise identical speakers and one voice coil was wound with aluminum and one with copper and we assumed the aluminum was lighter (not necessarily the case however) the aluminum voice coil could be 'faster' with a slight increase in upper usable frequency range. Since no one I am aware of makes the same identical speaker with choice of voice coil winding options we can't really offer a real-world comparison. Any difference would also show up in the T.S. parameters if such an option was available. Aluminum 'ribbon wound' seems to be very popular for speakers in the higher power ratings. I have had one speaker in a monitor cabinet the drove me crazy, it was intermittent at low levels at the beginning of a gig, but if you hit it hard with power it would 'heal' itself for the rest of the night and then not work the next day again. It was the type of speaker with aluminum frame that could easily be disassembled for inspection and repair. The bonding weld of the two different metals where the aluminum voice coil was bonded to the copper wires that lead to the flex wires had failed but would apparently weld itself together after a heavy hit until it cooled back down overnight.

[JDubU]

Edge vs round winding:

[TimFox]

In a different application, I built a laboratory electromagnet where flat wire in an edge-winding configuration similar to that in the previous reply was used for more efficient heat conduction from the conductor to the outside.

[CaptDon]

I believe there are some that are 'ribbon wound' that resemble the coiled guts of a tape measure?