The very flat yet stable ESI XSynth MIDI keyboard comes with a synthesizer engine. Ideal for making music on the go.

I tested and reviewed Arturia's new AstroLab 88. Learn all about this super-stylish, futuristic stage synth here.

I tested and reviewed Positive Grid's Spark EDGE, an all-in-one portable PA and guitar amp that's ideal for busking.

Find the best tech you can buy right now, chosen by experts at Engadget.