Compared with more traditional instruments that have been played for centuries, the analog synthesizer went from cutting-edge to retro in a remarkably short space of time. With the advent of digital processing and the laptop as the music tool of choice for a new generation of electronic musicians, there was a time when it felt as if the analog synthesizer, which came into its own in the 1960s, might have had a shelf-life measured in mere decades. It had offered a couple of distinctive motifs to the musical world – cosmic atmospherics and the insistently pulsing sequencer rhythm – before ceding the stage, like the protagonists of Toy Story, to more up-to-date electronic playthings. The association of early analog synth sounds with an era in science fiction whose ray-guns-and-jetpacks vision of the future now seems quaint added to the curious cultural positioning of synth music as futuristic yet almost immediately retro. For at least some of us who grew up with Jean-Michel Jarre, Vangelis, Kraftwerk, and Tangerine Dream, the digital revolution was not all unalloyed gain. Thankfully, fears of obsolescence have proved premature – a steady flow of recent releases continues to unfold the possibilities of the synthesizer sound world, whether with vintage equipment or its hand-constructed descendants. The three albums below are my favorites from the first half of 2012.