International Morse alphabet
7 in Morse code
Hear the rhythm as long, long, short, short, short.
--...dah dah dit dit dit
30 second sound drill
Listen to the complete rhythm. Do not count its parts.
Ready
Hear 7 as one sound
At 20 WPM, the elements join into a recognizable audio shape. Farnsworth spacing leaves time after the complete character without changing that shape.