1. Left-hand fingers:
- Index finger (1) on the first key from the top (C key)
- Middle finger (2) on the second key from the top (D key)
2. Right-hand fingers:
- Index finger (1) on the third key from the top (F# key)
- Middle finger (2) on the fourth key from the top (G key)
- Ring finger (3) on the fifth key from the top (A key)
Press all of these keys down simultaneously to produce the note G. Make sure to keep your fingers centered on the keys for the best sound and intonation.