Every edge in the Stell-R graph represents a documented influence connection between ~25,000 artists, pulled from album reviews and music-history writing where one artist's name is explicitly cited in critiques of another's work. Not streaming co-listens, user similarity, or genre tags, just documented influence. My core methodology is at: Badillo-Goicoechea, E. (2025). Modeling Artist Influence for Music Selection and Recommendation: A Purely Network-Based Approach. Harvard Data Science Review