👉 The term "cosignatory" is typically used in the context of music, especially when discussing collaborations or songwriting. It refers to a co-author who contributes lyrics, melodies, and sometimes even instrumentation to an album. The term can also be applied to other forms of collaboration, such as writing songs with friends, family members, or colleagues. In this sense, "cosignatory" is often used in the context of songwriting to emphasize the collaborative effort and contributions made by all involved parties
