How is whistling and singing different?

Whistling involves producing sound by forcing air through a small opening created by pursed lips or between the teeth, resulting in a high-pitched tone. In contrast, singing uses the vocal cords to create a wider range of pitches and tones, often incorporating melody, harmony, and lyrics. While both express musicality, whistling is generally limited to simpler melodies and lacks the dynamic range and emotional depth of singing. Additionally, singing can convey complex emotions and narratives through lyrics, which whistling cannot.