A development opus, or developus (or dev), is a composition [opera] that is geared towards cell imitation so as for it to be totally compatible with TOS by furthering extensibility of jukebox dependencies (responsive to orchestration). These are typically introduced to advance or re-purpose some macrocontract. (see also Stewart, oeuvre, #opera)

Note (+): The term 'developus' was coined by Link Starbureiy.🤓 Plural: developii

Function map: opus (ballet) ⊆ opera ⊆ ... recital
LES' compositions