 These library disks gave musicians a taste of what was possible with the sample-engine and also the sequencer, acting as usable sounds right out-of-the-box, demonstration pieces for selling more, and tastes of what the extensive library could provide.The ASR-10 was also fully backwards compatible with the earlier Ensoniq EPS and EPS-16+ sound libraries.Ensoniq continued their practice of creating and commissioning sound libraries that real musicians used.