There are five artists with the name Harvest Moon

1) Ambient music written for video games in Natsume's Harvest Moon series. The music is relaxing, and often nostalgic for listeners.
2) A band from the Netherlands
3) A post-hardcore band from Denmark.
4) Nwobhm band from North Wales formed in 1979.
5) Dungeon synth from UK. https://harvestmoon.bandcamp.com/

Harvest Moon is also the name of a simulation video game series, with the first game of the series having the same name.
This game (on Super Nintendo) was composed by Tsuyoshi Tanaka