A Takamine acoustic guitar picks the harmonic of a single B note that sustains for 1 second and then ...
A low-pitched bell like drone.
A recording of a cowbell being struck once.
Security or intercom door buzzer
A short uplifting gently played Rhodes piano bell chord in the key of F.
An analog ring of a spiritual or ship's bell with a long decay in the key of E.
Electronic sharp high frequency light metal strikes and ringing percussive sequence 102 bpm
A retro sci-fi analog and filtered triple impact made with a Moog synthesizer.