Thank you very much for your list... It helps tremendously.
Here two additional infos:
Water is strong against pure Music (Melodeer)
Caturn (pure cosmic) is strong against the dark-fire combo (eg Hot Dog)
Also took out Tulip Tapir (spring) with one big bash from Strawbeary after reading in the Forum that someone used it successfully. Unfortunately I cannot yet tell if Ice cream is strong against Spring in general...