Name English English; NP-32/NP-12 Owner's Manual — [2.9MB] NP-32/NP-12 MIDI Reference Simple, stylish, and portable piano-style keyboard. View online or download Yamaha Piaggero NP-12 Owner's Manual Name English English; NP-32/NP-12 Owner's Manual — [2.9MB] NP-32/NP-12 MIDI Reference NP-32/NP-12 Owner’s Manual 7 Always turn the power off when the instrument is not in use. Even when the [ p] (Standby/On) switch is in standby status (pow er lamp is off), electricity is still flowing to the instrument at the minimum level. Simple, stylish, and portable piano-style keyboard. Yamaha Piaggero NP-12 Pdf User Manuals.