[Sound of drone aerial filming, sound of a helicopter] (Hectic / Bustling / Clamorous) [Tail rotor: High-frequency "drone" or "whirring" sound.] [Engine sound: A "whine" heard from near or far.] [Sound of drone aerial filming, sound of a helicopter] (Hectic / Bustling / Clamorous) [Tail rotor: High-frequency "drone" or "whirring" sound.] [Engine sound: A "whine" heard from near or far.] [The sound of factory machinery] [High-pitched sound] (Clang!) [The sound of steam] (Pshhh...) [rock] [flute] [Sound of drone aerial filming, sound of a helicopter] (Hectic / Bustling / Clamorous) [Tail rotor: High-frequency "drone" or "whirring" sound.] [Engine sound: A "whine" heard from near or far.] [The sound of factory machinery] [High-pitched sound] (Clang!) [The sound of steam] (Pshhh...)
