Prelude violin strings are solid steel core strings, unaffected by temperature and humidity changes, and have excellent bow response. Prelude strings have the warmest sound available in an economy, solid steel core string design. Prelude is the educator's preferred choice for student strings due to their unique blend of warm tone, economy, and durability. Works well either amplified or acoustic.. Scaled to fit 4/4 size violin with a playing length of 13 inches (328mm), medium tension strings are optimized to the needs of a majority of players.