Tin foil was not a practical recording medium for either commercial or artistic purposes and the crude hand-cranked phonograph was only marketed as a novelty, to little or no profit.
Phonograph cylinders are the earliest commercial medium for recording and reproducing sound.
In 1902 Edison Records launched a line of improved hard wax cylinders marketed as "Edison Gold Molded Records".
The major development of this line of cylinders is that Edison had developed a process that allowed a mold to be made from a master cylinder which then permitted the production of several hundred cylinders to be made from the mold.
Following seven years of research and experimentation at their Volta Laboratory, Charles Sumner Tainter, Alexander Graham Bell and Chichester Bell introduced wax as the recording medium and engraving, rather than indenting, as the recording method.
In 1887, their "Graphophone" system was being put to the test of practical use by official reporters of the US Congress, with commercial units later being produced by the Dictaphone Corporation.
In 1993, the International Piano Archives at the University of Maryland issued a two-CD set of Foster performances taken from live concerts.