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SOF KIM: Amazon KDP author data

As of Nov 6, 2026, SOF KIM has 9 books on Amazon, 9 of them on a best-seller list in the last 30 days, mostly in Songbooks, Classical, Instruction & Study.

9Books on Amazon
9Listed in 30 days
-Average rating
Median price$9.99
Price range (middle 50%)$9.48 – $9.99
Median reviews-
Total reviews0
New books (30 days)9
Breakout books (30 days)0

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What stands out

  • 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $9.99, 17% below the median of their main category, Songbooks.
  • 9 new books in the last 30 days.

SOF KIM's best-ranked books

  1. NeuroMusic™ Piano Lesson Book Level 3: Bass Clef, Rhythm, 2/2 & 6/8 Time & 24 Original Pia book cover by SOF KIM

    NeuroMusic™ Piano Lesson Book Level 3: Bass Clef, Rhythm, 2/2 & 6/8 Time & 24 Original Piano Songs | Perfect for Ages 5–9 | Brain-Informed Piano ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  2. NeuroMusic™ Piano Lesson Book Level 4: Scales, Intervals, Rhythm, Dynamics, Articulation,  book cover by SOF KIM

    NeuroMusic™ Piano Lesson Book Level 4: Scales, Intervals, Rhythm, Dynamics, Articulation, Tempo & 27 Original Piano Songs | Brain-Informed Piano ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  3. NeuroMusic™ Performance Book Level 5: Chords, Harmony, Key Signatures & Musical Expression book cover by SOF KIM

    NeuroMusic™ Performance Book Level 5: Chords, Harmony, Key Signatures & Musical Expression | 34 Original Piano Songs | Ages 7–12 | Brain-Informed ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. NeuroMusic™ Performance Book Level 6: Advanced Chords, Harmony, Rhythm & Musical Form | 40 book cover by SOF KIM

    NeuroMusic™ Performance Book Level 6: Advanced Chords, Harmony, Rhythm & Musical Form | 40 Original Piano Songs | Ages 8-13 | Brain-Informed Piano ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.19
    • Reviews-

    View on Amazon · Full data on KDPTop

  5. NeuroMusic™ Performance Book Level 4: Beginner Piano Performance, Grand Staff, Scales, Int book cover by SOF KIM

    NeuroMusic™ Performance Book Level 4: Beginner Piano Performance, Grand Staff, Scales, Intervals & Musical Expression | 24 Original Piano Songs | Ages 6–10 | Brain-Informed Piano Learning for Kids & Adult Beginners

    by SOF KIM

    • Price$9.34
    • Reviews-

    View on Amazon · Full data on KDPTop

  6. NeuroMusic™ Piano Lesson Book Level 6: Advanced Harmony, Cadences, Composition & 40 Origin book cover by SOF KIM

    NeuroMusic™ Piano Lesson Book Level 6: Advanced Harmony, Cadences, Composition & 40 Original Piano Songs | Brain-Informed Piano Method for Kids, Teens & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  7. NeuroMusic™ Performance Book Level 2: Beginner Piano Performance, Note Reading, Rhythm & M book cover by SOF KIM

    NeuroMusic™ Performance Book Level 2: Beginner Piano Performance, Note Reading, Rhythm & Musical Expression | 27 Original Piano Songs | Ages 4–8 | ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  8. NeuroMusic™ Performance Book Level 3: Bass Clef, Rhythm, Note Reading & Creative Performan book cover by SOF KIM

    NeuroMusic™ Performance Book Level 3: Bass Clef, Rhythm, Note Reading & Creative Performance | 27 Original Piano Songs | Brain-Informed Piano Learning for Kids & Adult Beginners

    by SOF KIM

    • Price$9.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  9. NeuroMusic™ Piano Lesson Book Level 5: Harmony, Chord Progressions, Inversions, Musical Ex book cover by SOF KIM

    NeuroMusic™ Piano Lesson Book Level 5: Harmony, Chord Progressions, Inversions, Musical Expression & Creativity | 24 Original Piano Songs | Perfect ... & Adult Beginners (NeuroMusic™ Method Series)

    by SOF KIM

    • Price$9.48
    • Reviews-

    View on Amazon · Full data on KDPTop

Main categories

FAQ

How many books does SOF KIM have on Amazon?

KDPTop tracks 9 of their books; 9 made an Amazon list in the last 30 days.

Which categories does SOF KIM publish in?

Their books chart most often in Songbooks, Classical, Instruction & Study.

How does SOF KIM price their books?

The median price is $9.99; half of the books cost $9.48–$9.99.

Has SOF KIM released new books recently?

9 new books in the last 30 days.

About this data

Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.