From 《荀子·乐论》: '乐者⋯其移风易俗,故先王导之以礼乐而民和睦' — 'music⋯ shifts customs and transforms practices, so the former kings guided the people with ritual and music into harmony'. Xunzi frames it as the ruler's civilizing task.
register
Formal, policy and editorial register. Common in government documents and news about rural reform, wedding/funeral simplification, anti-superstition campaigns.