first tape was aded in wolf trials update

to get it you need to get every (6) odd fuses and beat wallys score (15) when you fail after you beat wallys score you will hear wall break and congratulations you have unlocked first secret tape with Joeys voice

this one is from symphony of shadows update so it is not long time existing

for first play as sammy (you get him by colecting 4 candles and his mask in lockers) when you unlock him you can see on wall in guys resrooms picture of instruments in order: bass --> drum --> violin --> piano --> drum --> banjo

(sammy is only one who can play on instruments)

(you must play on all instruments in one day if you play on one instrument first day and second day you will play to next instrument ect. it will dont be fuctioning)

in game where you played on instruments in this order you cant die and get out of here by elevator (banjo cant be found in any levels so you must play at banjo in savehouse then you will hear sounds of opening cage and sound of that guy from batdr it is unlocked (that tape is in guys resrooms)

by the way this order (bass --> drum --> violin --> piano --> drum --> banjo refers to same order in batim in chapter 3 (when you play at instruments in this order (without banjo) in batim in chapter 3 sammy will say to you something)

difirence of bass and violin

that instrument on left side is bass

that instrument on fence is violin

i hope it was helpfull to you bye ;D