K: Gmaj T: 120 BPM TS: 4/4 INST: INST:AcousticGuitar, INST:ElectricRhythmGuitar (jangly/Rickenbacker), INST:ElectricLeadGuitar, INST:DoubleBass/ Bass, INST:Drums, INST:Piano, INST:BackingVocals (tight harmonies), INST:Tambourine/HandPercussion, (optional) INST:Organ/StringPad Mood: Nostalgic, melodic, warm, upbeat-with-a-wistful-edge Structure: Verse–Chorus–Verse–Chorus–Bridge (Middle 8)–Chorus (typical Beatles pop form) Summary: "Beatles unpublished" suggests an unreleased Beatles-style pop/rock tune — melodic, concise, and harmony-driven. A likely setting is G major at a medium pop tempo (~120 BPM) in common time with jangly electric rhythm guitar, acoustic strumming, melodic bass lines, piano/organ color, steady drums and hand percussion, and prominent close three- or four-part vocal harmonies. The arrangement would favor a classic Verse–Chorus–Bridge layout with a distinctive middle eight and possibly a short instrumental break or lead-guitar lick. Production-wise aim for warm analog tones, live-feel interplay between rhythm instruments, and foregrounded vocal melody and harmonies.

Model: gpt-5-mini