Quick answer — sayonara ponytail performed 1 anime theme, including "Sora mo Toberu Hazu" from Tsuritama.
sayonara ponytail performed the anime theme songs "Sora mo Toberu Hazu" (Tsuritama).
sayonara ponytail's first listed anime theme is "Sora mo Toberu Hazu", the ending of Tsuritama.