Accent is a market it is climbing in; solid ink is a market it is charting in without a rise we can measure. A song that crawls from one market to its neighbours draws a different picture from one that lands in fifty on the same morning. The picture is the answer.
Market by market
Only Seoul is on I Thought I Saw Your Face Today. The country isn't.
8 records are charting in South Korea's cities and nowhere on its national chart. Ranked by how many cities are on them, then by how high they reach.