For each tone row h in the orbit of f an element (φ,π) of the acting group D12 × D12 is presented so that h=(φ,π) f=φ o f o π-1. If you press the button "S" the stabilizer of the corresponding tone row in D12 × D12 is computed. The tone rows are ordered by the lexicographic order. There are at most 576=242 tone rows in one orbit.
For more details see Sections 3.1, 3.2 and Remark 3.1 of [1].