概して過誤 (Gaishite Kago) is a maimai original song by composer isonosuke featuring the vocal synth 知声 (Chise). It debuted in maimai DX PRiSM PLUS on May 9, 2025, as part of the Dragon Chihou 4 (Dragon Area 4) event unlock system, before becoming generally available on March 19, 2026. The track sits at a steady 170 BPM in the maimai original genre category. The song is accompanied by a narrative flavor text that tells a story from the perspective of a young woman left behind as her kingdom's lone dragon knight. Her older brother, once celebrated as a prodigy and knight commander, killed one of the great earth dragons, became cursed, lost his partner dragon, and was driven out of the country by the very commoners who once praised him. The title 概して過誤 ("Generally Speaking, a Mistake" or "On the Whole, an Error") appears to reflect the bitter irony of a kingdom that turned on its greatest protector. This story ties into the Dragon-themed event series that has appeared across several maimai DX versions. The MASTER chart (level 13+, constant 13.7) was designed by 鳩ホルダー (Hato Holder), while the EXPERT chart (level 10+, constant 10.6) was designed by はっぴー (Happii). The MASTER chart's 800 total notes (608 Tap, 52 Hold, 78 Slide, 19 Touch, 43 Break) make it a demanding upper-tier 13+ for its version.