According to data from Quark.com, there are six series of Yamaha electronic keyboards:

PSR series models are:

PSR-F52, YPT-270, PSR -E273, YPT-370, PSR-E373, PSR-EW310, EZ-300, PSR-E360, PSR-E473, PSR-EW425. The main recommended models are PSR-F52, YPT-270, PSR-E273, YPT-370, PSR-E373, PSR-EW310, PSR-E360, PSR-E473, PSR-EW425. KB series models include: KB-208, KB-209, KB-308, KB-309, KB-90. The main recommended models are KB-90, KB-309, KB-308, and KB-208.

NP series models include:

NP-12, NP-32. The main recommended models are NP-12 and NP-32. Sonogenic series models include: SHS-300, SHS-500. The main recommended models are SHS-300 and SHS-500.

PSS series models include:

PSS-A50, PSS-E30, PSS-F30. The main recommended models are PSS-E30 and PSS-F30. Digital music workstation series models include: PSR-SX600, PSR-SX700, PSR-SX900, Genos. The main recommended models are PSR-SX600, PSR-SX700, PSR-SX900 and Genos.

The electronic keyboard is an electronic keyboard instrument and is an electronic music synthesizer. A large part of the performance of the electronic keyboard is completed through automatic chord accompaniment. In music, the connection of chords promotes the progression of the melody, and different harmonic connections form different musical colors.