Here are a few ideas:
1. Vinyl record collection of her favorite R&B/Soul artists - If she loves music, she would be delighted to receive a collection of songs from her beloved era.
2. A custom mixed cassette tape - You could curate a playlist of her favorite songs and performers, AND record a personal message to start and end the cassette making it perfect just for your anniversary.
3. Tickets to an R&B/Soul concert or show - If you can find a performance scheduled concert/event show which aligns with your anniversary celebration, make it an unforgettable evening together.
4. Personalized lyric artwork - You could get a personalized piece of artwork made that features the lyrics of her favorite R&B/Soul songs. Several artists can even customize an image in the shape of significant dates, like your anniversary date.
5. An R&B/Soul-themed scrapbook or photo album - Create an album of old tickets/products, memories, images or unique posters, and memorabilia active during her favorite R&B/Soul artist performer's era. It'll be an amazing walk down memory lane.
Or you can get her a star map with the date of your anniversary.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.