Arrhythmia is the second studio album from Irish art rock band, Hail the Ghost, which was released on 6 December 2019 on CD, vinyl and digital formats.

[3][4][5] The album was recorded, mixed and mastered in JAM Studios, Kells, County Meath in Ireland between 2016 and 2019.

[3] The album sleeve for Arrhythmia is the work of Italian visual artist, Sveva Robiony.

[3] The album received favourable reviews with The Irish Times referring to the album as a "smart collection of intelligent and sensitive rock...[that will] do the heart and soul good.

"[2] Hot Press Magazine reported: "Last time round, we described them as "atmospheric indie", but 'Arrhythmia' is composed of bleaker soundscapes, more reminiscent of Joy Division".