The best first lesson choice depends on the student's age, attention span, musical interests, and home practice setup.
Piano is often a strong first instrument because students can see the full layout of notes and harmony. Violin, cello, voice, and guitar can be excellent first choices when the student is excited by the sound and has a clear practice routine.
Families who are unsure can start with a trial lesson. The teacher can evaluate readiness, recommend lesson length, and help choose a weekly plan.