101Leafy researched the game with the Hilltop Works fan translation patch, English translation by Cargodin
Tape Recorder is item 31 of the game's item table, in the Items group. The script names it on disc 2.
Lines of the script that name it, each with a link to its place in the script.
That's the instrument storage room.
Do you... still have that punch card?
As one would guess, it's for music. I see you have a tape recorder...
Good. Record the music that plays here, then play it back at the door all the way down the hall. Doubly guessed, the door will open to the melody.
楽器庫があったよ。
あんた…パンチカードはもう手に入れたの？
きっと、それで楽器を演奏するんだよ。録音機は持ってるよね…
それだよ。音楽が録音されたら、このまま真っ直ぐ行った突き当たりの扉の前で、録音機を使うのさ。きっと、そこの扉は、音楽を聴いて開くようになってるはずだよ。
This stage too reacts to music. Ride it up to the third floor.
Look carefully on the stage. The target there has sealed a door in the third-storey backrooms shut.
この舞台も録音機で動くよ。それで３階まで行ける。
ただ、３階のバックヤードに出る扉を閉めてる鬼律がいるよ。舞台の近くを、くまなく捜すことさ。
Tape Recorder acquired.
「録音機」を入手しました。
Find your friend, and get her out of Tin Tong Theatre right away. If you wait, the malice will get her.
Take my tape recorder. You'll need it. Play back its music at the entrance. The theatre is set up to open some doors when select sounds are played. Once you're inside, you can use it to record new sounds you hear. Now, hurry!
早く見つけてやるんだ、あんたの友達を。ぼやぼやしてると、邪気にやられてしまう。
ほら、うちの録音機だ。これを使ってくれ。天堂劇場の入口で音楽を再生するんだ。劇場の中にも、音楽を集めると道が開く仕掛けがあるはずだ。その録音機は、持ってるだけで音楽を録音できる。さあ、早く行ってやれ。
Play back the music on my tape recorder at the Tin Tong Theatre entrance.
If you wait, the malice will get your friend.
劇場の入口で録音機を使うんだ。そうすれば中に入れる。
早くしないと、あの娘が邪気に憑かれてしまうぞ。
Item table: Unisex Wig Tape Recorder Punch Card
English translations by Cargodin for Hilltop Works Fan Translation Patch: https://www.patreon.com/hilltopworks/posts/kowloons-gate-160555525?collection=18503