Here’s a look at the second wave of Roland Boutiques. The TR-09 is based on the TR-909, the TB-03 is based on the TB-303; both are good if you are making any kind of electronic music. The VP-03 offers a classic vocoder sound based on the VP-330. Alternatives to the Boutiques comes from Korg with its Volca rangedo but they don’t have the complexity of programming that the Boutiques have. You can learn more from the review by MusicTech.net.