Transacaglia in G-minor

The speed and length of the half-note runs aren't intense enough to make scoring difficult, but this style of half-note pattern isn't common until you reach high D17. Because of the unfamiliarity of the pattern, it's easy to fail miserably when attempting a clear without experience, so it's not recommended as an entry-level song.

A run chart where half-note processing is key.

And then, after handling the 6-half, the next runs get shorter and shorter.

A chart that proceeds with hold twists and holds until the late game, then requires you to survive the late-game runs / Seems okay to use as an entry-level D18.