2, accompaniment = composition+arrangement. They are two different majors. Simply put, composition = inspiration+technology. Composition inspiration = melody from the heart. The technique of composing music = recording this heartfelt melody in a standard way, and extending it to develop completely. Arranging is an extension and development of this complete melody. I think which instruments are combined to play the best, which can best set off the melody and the overall artistic conception of the lyrics.
Composition and arrangement are professional disciplines of music, and the Conservatory of Music has these two majors.
3. At present, there is no uniform market price for recording studios, which is mainly decided by the owners themselves. Generally divided into broadcast level &; Two publishing levels. The calculation method is to rent+sound engineer in "days". Generally speaking, making songs requires a recording studio to record the instruments needed for accompaniment; Recording human voice (singing); Post-mixing; Master mix (if required).
The simple question you asked is actually the whole process of song production in the declining record industry. It is composed of every link of song production &; All steps are completed by a top team of experts. It is unrealistic to want to make a published song by myself now.
Suggestion:
1. Buy a "guitar" and learn how to play and sing. Guitar is a relatively cheap, portable and easy-to-use musical instrument. Learned to play and sing guitar, mastered the principle of guitar accompaniment and a lot of chord fingering &; After "breaking the way of playing", it is a relatively simple and quick way to use guitar to assist you in writing songs and singing.
2. Search online for "composition"&; Tutorial on "Arrangement". Add some hardware suitable for your needs, such as sound card and microphone. Download music production software and install &; Study &; Use. At present, most songs are made by computer.
I hope my answer is helpful to you.