Wrong again. From
https://psap.library.illinois.edu/collection-id-guide/phonodisc
Aluminum disc grooves are surprisingly malleable and were originally intended for use with either wooden needles or similarly forgiving fiber styli (e.g. cacti or bamboo). Just one playback with a modern standard-issue steel stylus can do irreparable damage to the grooves.
The aluminum disc recording is a relatively obscure phonograph format for one-off home and radio transcription recordings in the late 1920s through 1940s. Unlike any other phonograph, the aluminum transcription disc is plainly identifiable as uncoated, bare aluminum. These records have a limited dynamic range and inferior sound quality. The recording should be assumed to be unique and will require a delicate fiber stylus for responsible playback.
One off aluminum disc recordings were done in 1920 so there " first major development in analog music reproduction in more than 70 years" is a 100 year step backwards !!
If you read on they talk about lacquer (on aluminum) being used for direct to disc recording in the 1940's so TBone is an idiot.
And as one offs the price will be ridiculous. I don't get this. If I buy one of these is it the only recording of that take ? Thats what the marketing sounds like "its like an original painting". So Bob has to sing (and I use that term loosely) the same song 100 times if they want to sell 100 copies? I want the good take. Its like Piccasso painting the same picture 100 times. Sounds like more BS.