vintage radio, light jazz, no vocals

[Genre: Vintage Jazz, Radio Jingle] [Mood: Warm, Nostalgic, Upbeat, Welcoming] [Instruments: Upright bass, brushed drums, soft piano, muted trumpet, vinyl crackle, radio static] [Tempo: 90-100 BPM, swing feel] [Structure: Short intro build → main melody → clean fade out] [Features: No vocals, vintage radio filter effect, light vinyl noise background, 20 seconds max] [Tags: #instrumental #jazz #retro #podcast #intro #noradio #background] Style description: A cheerful 1940s-style radio jingle with light jazz arrangement. Start with subtle radio tuning sound, then smooth bass and piano enter. Add gentle trumpet melody with vintage EQ filter. End with clean fade, leaving space for voiceover. Keep it bright but not overpowering — designed to introduce a quiz, not distract.