crossFade

fun (Int, Double) -> Double.crossFade(start: Double, end: Double, width: Double = 0.5): (Int, Double) -> Double(source)
fun (Int, Double, Double) -> Double.crossFade(start: Double, end: Double, width: Double = 0.5): (Int, Double, Double) -> Double(source)
fun (Int, Double, Double, Double) -> Double.crossFade(start: Double, end: Double, width: Double = 0.5): (Int, Double, Double, Double) -> Double(source)