You can't say which is good or not. When you say folk guitar, you should say acoustic guitar. Acoustic guitars are made of metal strings, while classical guitars are made of nylon strings. The timbre of metal strings is richer than classical ones, because thin strings make the subtle movements of the left hand more sensitive than classical ones. The sound of classical piano is deeper, while the sound of box piano is brighter and clearer. Classicism has experienced hundreds of years of precipitation and sublimation, which is very broad and "academic". The acoustic guitar (fingering) has done more articles on rhythm, which is more casual. The left-handed technique is relatively simpler than classical music, and the key technique moves to the right hand. Simply put, classicism has been precipitated for hundreds of years, and steel string guitar has an imagination. Don't say who is tall and who is low. Details can be found in Tianjin Xincheng Guitar. Each lesson of Xincheng Guitar Training Course is junior 30 yuan, intermediate 50 yuan and advanced 80 yuan. Jazz class 150 yuan, one class is free. The address is near Kelly's home on Changjiang Road. Introduce contact information and details.