◆ These items are from when I was previously involved in the music industry. ◆ The size is 20cm tall, 19.5cm wide, and 0.7cm thick. ◆ It appears to be a guidebook/commentary for teachers in elementary schools, etc., teaching Korean traditional music "Gugak" (equivalent to Japanese Gagaku). ◆ This book is difficult to obtain in Japan. ◆ All text is in Korean (Hangul). ◆ The original price at the time in Korea is listed as 4000 won. ◆ Recommended for Korean music instructors, enthusiasts, and those involved in music education. ※ The book itself is unused, but it is a book that has been stored for a long time. ※ Please check the condition in the photos before purchasing. ※ Price includes shipping. ※ Price negotiable.