[Master_Instruction: Instrumental Only. No vocals. Dedicated BGM for livestream "Starting Soon" screen. Sophisticated and refreshing atmosphere like "Blue Archive". 126BPM. Loop-friendly structure.] [Intro: Soft electric piano fade-in, distant digital chimes, gentle white noise like a breeze] [Section_A: Main Loop. Catchy electric piano chords, bouncy 4/4 rhythm, light-hearted synth plucks. Feeling of anticipation.] [Section_B: Melody Layer. High-pitched melodic vocal chops enter. The energy picks up slightly, sparkling and joyful.] [Breakdown: Drums drop out. Only electric piano and atmospheric pads. A calm moment for the streamer to do final checks.] [Re-Build: Light percussion returns, rising star-bells, rhythmic clapping, building back to the main energy.] [Section_C: Full Climax. Every layer combined—Vocal chops, bright synths, and driving bass. Perfect for the moment right before the streamer says "Hello!"] [Outro: Minimalist piano notes, fading digital bubbles, ending with a soft chime to signal the start of the stream.] [End]