I used an OTTO/SANYO RD-2310 reel-to-reel deck. I overdubbed a recording of a homemade banjo violin at different speeds. It creates a nice atmosphere.
OTTO/SANYO RD-2310というリールトウリールデッキを使用。録音されたHomemade Banjo Violinの回転数を変えて多重録音しています。良い雰囲気ですね。

Recording Equipment：
OTTO/SANYO RD-2310,
Homemade Banjo Violin,

Bandcamp

Skeleton Tapes - Experimental Ambient with Reel-to-Reel Tapes

Manga artist, Bedroom musician, Cat owner.
Books: "The Mysterious Frog Princess", "The Mysterious Mummy Girl", "37564 Academy", "Girls' Alliance", "True Horror Stories", "Graveyard Classroom", "Crab Woman"
Music: "Young Antonio's Alien Experience", Inun-do, "Attack of the Killer Hamster", Monofonus Press (USA)
Band: Mankos (2003-)

CD: "Antonio Young Man's Alien Experience" Inundo
Cassette Tape: "Attack of the Killer Hamster" Monofonus Press(USA)
Book: "Mysterious Frog Princess""Mysterious Mummy Girl""37564 (Minagoroshi) Academy""Girls' Alliance""True Horrible Stories (Blue Comics BLACK BUNKO - Mysterious Horror Complete Works)""Graveyard Classroom"and "Crab Girl"

Skeleton Tapes - Experimental Ambient with Reel-to-Reel Tapes

Mori Kanda