Difficulty levels are set for the songs listed on this website.
There are various difficulty levels, such as those set by the publisher and those listed on various personal sites.
This site sets the difficulty level by my experience and actually playing it.
Since the difficulty level is judged from multiple factors, it cannot be said that “this is the standard”.
However, you may want to know the guideline for what can be done and how difficult it is, so I have given a concrete example in the [Main contents / guideline] column.
Please refer.
Also, as an example that I often see, “Bayer degree”, “Czerny XX degree”, “Sonatine degree”, but in modern times, textbooks are also diverse and I feel these examples are not enough as a guideline.
Therefore, the scope is expanded a little more and the corresponding textbooks are listed in the [Main textbooks] column.
There are eight difficulty levels as follows.
easy <— A1, A2, B1, B2, C1, C2, D1, D2 —> hard
↓↓ The table below will be updated from time to time ↓↓
| level | Main contents / guideline | Main textbooks / Works | |
| A | 1 | ・Playing a melody through both hands ・Play with both hands | ・John Thompson’s Modern Course for the Piano Teaching Little Fingers to Play ・David Carr Glover Piano Student Primer Level ・Mikrokosmos Volume 1/B.Bartók |
| 2 | ・Simple accompaniment（Single note / Double notes） ・Aiming for independence of left and right fingers | ・John Thompson’s Modern Course for the Piano First Grade ・David Carr Glover Piano Student vol.1・vol.2 ・Mikrokosmos Volume 2/B.Bartók | |
| B | 1 | ・The register expanding ・Number of keys increase ・Little complicated ・accompaniment（Chords / Arpeggio） | ・John Thompson’s Modern Course for the Piano 2nd Grade ・David Carr Glover Piano Student Vol.3 ・Mikrokosmos Volume 3/B.Bartók |
| 2 | ・Introduction of two parts ・Left and right hands are used almost equally and are completely independent ・Can handle almost all basic rhythms and symbols ・Able to read/play almost without problems in any range ・Can handle accidentals | ・Mikrokosmos Volume 4/B.Bartók | |
| ・Invention/J.S.Bach ・Music for Children, 12 easy pieces, Op. 65 | |||
| C | 1 | ・Two parts ・Introduction of three parts ・Can handle complex rhythms and irregular time signatures ・Fast passages can be played without problems | ・Mikrokosmos Volume 5/B.Bartók |
| ・Sinfonia/J.S.Bach | |||
| 2 | ・Three parts ・Introduction of four parts | ・Mikrokosmos Volume 6/B.Bartók | |
| ・The Well-Tempered Clavier, Book 1 & Book 2/J.S.Bach | |||
| D | 1 | ・The so-called “difficult pieces” ・Still do your best ・For those who can reliably perform works up to intermediate (C1,C2) level | |
| 2 | It depends on your curiosity… | 51 Exercises/J.Brahms | |