ISTD Classical Greek Dance — faculty technique and examination genre

Classical Greek is a full ISTD faculty, not a fringe revival. ISTD verbatim: the technique "was developed by Ruby Ginner MBE (1886-1978)" and is "based mainly on the heritage of 5th century Greece". Biennial Classical Greek Dance Festival; annual Ruby Ginner Awards. ISTD is an authority we already cite for other styles. PRIMARY SOURCE for LODance style "classical-greek-dance" (publication_status=research). Year deliberately NULL: these are living documents in numbered editions and a single year would misrepresent them — read and record the edition in force.