Input: Most loop pedals have a mono input, but stereo loopers are popular among certain instrumentalists, such as keyboard players.
Do keyboards have loopers?
Built-in Looper Features of Sequencing, Recording & Effects
The huge come-on of most keyboard workstations is their ability to address the production and composition needs of users. ... They also come with onboard effects which are crucial to the enhancement of the recordings.
Do you need an FX loop for a looper pedal?
You don't actually need an effects loop on your amp as plenty of guitarists don't bother using them, especially if you're only using distortion, fuzz or boost pedals. But if you want to get far greater clarity when using effects like modulation, delay and reverb, the effects loop might be something you'll appreciate.