Anglada-Tort and colleagues recast musical behaviour as decision-making rather than preference considered in isolation. Using a PRISMA-guided systematic review, they move from 338 identified records to 32 included studies and organise the field into four behavioural-economic domains: heuristics and biases, social decision-making, behavioural time preferences and dual-process theory. The theoretical contribution is to show that musical choices are structured by cognitive shortcuts, social information, temporal valuation and shifts between intuitive and deliberative processing. Music listening, performance and consumption consequently appear as situated decisions rather than transparent expressions of taste. Particularly useful is the demonstration that familiarity and expertise can alter the balance between automatic and controlled judgement. The proposed Behavioural Economics of Music programme opens a bridge between music cognition and behavioural economics, providing a framework for studying how platforms, recommendations, repeated exposure, social signals and temporal routines participate in the construction of musical value.