The seven piano fingerings you must learn are as follows:

1. Single-finger playing: the most basic fingering method, press the keys lightly with your fingertips and play with only one finger. This fingering is often used to play single notes or simple melodies.

2. Play in parallel: Use two adjacent fingers to press adjacent keys at the same time. For example, use your thumb and index finger to press adjacent white or black keys at the same time.

3. Span playing: Press the keys at the same time using a large distance between your fingers. This fingering is common in repertoire that requires playing notes or chords with a long span.

4. Jump playing: Use one finger to play two non-adjacent keys continuously. This fingering is common for notes or chords that require quick jumps.

5. Hand position transfer: Move your fingers smoothly on the keyboard to play continuous notes or chords. This fingering helps you make smooth transitions between notes.

6. Rolling Chords: Continuously press and release the keys by gently sliding your fingers to play chords. This fingering is often used to play smooth chord sequences.

7. Crossed hand positions: When you need to play notes at different positions on the keyboard, crossing your fingers can make it easier for you to play smoothly. This fingering is common in more complex repertoire.

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