Analog vs digital. Analog will always be better for sound because sound is analog in nature. Its a waveform. Sampling can be high to make digital sound like analog but still analog is king.
Your keyboard is not playing authentic harmonium sound sample. You are comparing STRINGS sound with HARMONIUM. Also check actual tuning of the reeds of your harmonium. If your setup is right there should be no difference in the rendering of two instruments.
Grand piano 500 centuries purana western musical instrument h electric keyboard to abhi aaye h. Harmoniam bhi bohot purana classical musical instrument h dono me koi comparison nhi hai. Harmoniam or piano ko compair karna matlb guitar or violin ko compair karna h
Harmonium(good Type) ka sound me ganey ka maza hi aur hai.key Board ka tone me ek aisi andekha tikhi sound hota hai ussey ho sakta hai aap ki ear me trouble ho.