It is not so preferrable to use ♯&♭ in music. Though ♯&♭ are utilized traditionally as a matter of course in music, they had better not be used originally. As ♯&♭ make music complicated, they are not suitable to music. It may be very disappointing, but these marks make music rather difficult to understand. As they are unsuitable to music, they should not be used completely at all in music.
Some people may think that ♯&♭ must be used in case of just intonation. But I will show that even in case of just intonation they need not be used in this report. We can do it easily without using ♯&♭, even in case of equal temperament or just intonation. As there are these marks in music, music has some special peculiarity, and musical scores become more complicated. There is another way in music, which is natural and may become a wider acceptance in many people.
Some explanation may be necessary, as I say that music has some special peculiarity owing to ♯&♭. We can see this peculiarity clearly in music key. There is a special unbalance of key in the number of music. For example, there are a lot of music scores with G key, as compared with music scores with G♭ key which is only a half-tone lower. Why are there so many numbers of scores with G key, and are there so few numbers of scores with G♭key？ Does this depend on music tonality? The answer is "No". The numbers of scores with G key and with G♭key do not depend on music tonality. They depend only on the difficulties of musical grammar, which is peculiar. We use only one ♯ in G key, and 6 ♭s in G♭key.
Music beginners often play music of G key and never play music of G♭ key. Music teacher does not make pupils play G♭ key music at first. But G♭ key music playing is easier than that of G key music, as many black piano keyboards are used in G♭ key music. In the piano playing we can easily play the music in which many black keyboards are used, as the piano has fewer black keyboards conpared with white keyboards. Scores which have many black keyboards are simple and easy to learn. Therefore it is better to learn music at the beginning, whose key has more black piano keyboards.
Some piano teachers may make pupils play "five funny fingers （Floh walzer）" at first in which many black keyboards are used. But in this case they can not teach scores at the same time. In learning music, both playing the instrumens and reading scores are necessary. Only playing the intruments is not a formal learnig.
♯&♭ are good neither for equal temperament nor for just intonation. ♯&♭ are half measures, and do not fit for both. In case of equal temperament it is easily understood for one, even if, who is not so well aquainted with music, that ♯&♭ are unnecessary to music. Because in one octave there are only 12 tones. So only 12 notes are sufficient for an octave of 12 tones. Owing to ♯&♭, "enharmonic notes" are generated and it is clear that these are not necessary. On the other hand, in case of just intonation ♯&♭ do not make it convenient to know how just intonation is formed. By using ♯&♭ we cannot understand its formation easily. ♯&♭ make just intonation more complicated and we cannot get it simply. So ♯&♭ disturb eventually many people from approaching just intonation. There are not so many people who understand 53 tones of just intonation. Those who know the 53 tones are not so aquainted with them, as they seem more complicated. But 53 tones of just intonation are simple and they become easy to understand, if we do not use ♯&♭ in music. This shows that ♯&♭ are not suitable to music. We had better have a new musical grammar or musical notation in which ♯&♭ are not used.
