Public Relations Muse(s)

Wondering who might be assigned as the muse of public relations? All that poetry, music, and dance doesn't seem to support PR talents. I suppose Calliope wins the job by default, or maybe Mnemosyne (famous muse Mom)should hold the title. Thalia (comedy) and Melpomene (tragedy) could collaborate on this. After all, PR work definitely involves a great deal of these two attributes.