The ball change shifts weight quickly from one ball of the foot to the other. Learn it quietly and in time: posture, timing, mistakes and clear milestones.
The honest answer first: the ball change is a quick weight shift in tap dance: you set down one ball of the foot and shift the weight at once onto the other foot, creating two sounds. It sounds like a short "da-dum", is often played on "& 1" and is one of the most-used building blocks of all.
The special thing: the ball change is a real weight change, not a tapping. If you play it like two taps, the sound lacks depth. If you really transfer the weight, it sounds round and carries you into the next step. That is why it is the transition from single sound to combination.
Research shows why ankle and knee are so central here: in a 3D motion analysis of three experienced tap dancers, feet and knees were the main actors; every analysed step needed at least 10 degrees of ankle movement, and the hips moved no more than 21 degrees in two of the three steps [1]. And tuning to the beat can be trained: in a study, competitive ballroom dancers tapped on average slightly before the beat, so predictively, and were more accurate than non-dancers [2].
A practical note: many classes count the ball change as "& 1", some as "a 1"; both mean the same short upbeat feeling. Ask your teacher which count your class uses and stick with it so ear and foot do not contradict each other (common practice standard, no source).
Realistic: the ball change sounds roughly right after one practice evening. Even and quiet takes weeks (rule of thumb, not a study result).
Stand upright, knees slightly bent. Shift the weight slowly from one foot to the other without bobbing. Milestone: you can shift weight ten times without the upper body swaying along.
Lift one foot slightly and set down the ball, the heel stays up. The sound is quiet and short. The knee stays soft, the movement comes from the ankle. Milestone: ten ball steps with the same sound per foot.
After the first sound the weight jumps onto the other ball. The second sound comes from the change, not from a tap. The weight travels with it. Milestone: ten ball changes where both sounds are audible and the second is a little stronger.
Play the ball change on "& 1": the first sound falls on the "&", the second on the "1". Start at 60 beats per minute, one per second, and raise it slowly. Timing counts: in the study, experienced dancers tapped slightly before the beat [2] and so stayed in time. For you: listen to the beat and go slightly ahead of it. Milestone: eight repetitions in time.
Alternate between left and right foot. In a randomised study with 44 healthy older adults, a 12-week tap dance programme (three times a week for 30 minutes) improved ankle strength and plantar flexion, while effects on postural control were limited [3]. That means tap dance trains the ankle but does not replace balance training. Milestone: eight ball changes alternating, without losing the beat.
The ball change loads the ball of the foot and the ankle, especially with many repetitions. In a study with 14 tap dancers, certain steps such as cramp roll and toe cannon produced clearly higher ground reaction forces than others, regardless of experience [4]. Build up tempo and volume slowly, do not practise on concrete and warm up ankles and calves for five minutes. Pause if the ball of the foot or shin hurts. This guide explains and motivates; it does not replace supervised training.
Say the rhythm aloud: "ba-dum, ba-dum". Your mouth sets the beat, your foot plays it back. If you can sing it, you can dance it. Next up is the shuffle ball change.
The ball change is a quick weight shift: you set down one ball of the foot and shift the weight at once onto the other foot. Two sounds result, often played on "& 1".
The shuffle consists of brush and spank (two sounds with one foot), the ball change of two weight changes between both feet. Both are often combined, for example in the shuffle ball change.
Yes, for timing and weight change a smooth floor with normal shoes or socks is enough. You only hear the sound with taps. So start without shoes and switch later.
Not fast at all. Clean first, then faster. Start at one repetition per second and raise it only when both sounds are even.
Usually the second sound is too quiet or too late. Play the first sound lightly and the second a little stronger, and keep the change short. Count "& 1" aloud. If the sounds stay uneven, first practise only the weight change without taps on a smooth floor.
Shuffle Ball Change in Tap Dance: The Classic Four-Sound Combination