warm

warmth

calm

tranquil

soft

mild notification

notifies

notify

ui

computer

operating system

os

announcing

user interface

notifying event

pleasant notifier

notified

notice

announcer

indicating

indicate

indication

idea

multimedia

multi-media

smartphone alert

mobile phone

mobile device

production

notes

app

application

vintage keys

classic keyboard

electric piano

distinctive sound

a-200

feel

feeling

wurlitzer samples

logo

ident

stinger

announce

notify event

multus media

note

vintage key

wurlitzer sample