bismark bs-16i is a 16 multi-timbral playback sampler. It loads SoundFont and DLS (Downloadable Sounds) as WaveTable, and can be used for keyboard instrument, MIDI sound module, and MIDI player. bs-16i has the synthesizer engine that has been adopted for many professional/commercial types of equipment. Using SoundFont / DLS libraries, you can play with your great number of instruments. With Hi-Res Engine option prepared as In-App purchase option enables high-quality and low-noise audio outputs by 100% floating-point calculations. All standard MIDI messages are supported, and your iPhone and iPad can be used as a GM (General MIDI) sound module by using pre-installed GeneralUser GS SoftSynth v1.44.sf2 (S. Christian Collins). As a keyboard instrument, you can play with the scalable screen keyboard, pitch bend wheel, and many control change controllers. Internal MIDI player supports SMF (Standard MIDI File) format as Song. WaveTable / Song / Scene files are managed in the "bs-16i" folder of your iCloud Drive, and synced between all your iOS / iPadOS devices. Moreover, this application supports Core MIDI interfaces like IK Multimedia iRig KEYS / iRig MIDI, YAMAHA iMX-1, LINE6 MIDI Mobilizer 2, Apple Lightning -USB Camera Adapter with USB Generic MIDI Interface, and Bluetooth accessory (Miselu C.24, QUICCO SOUND mi.1, etc). With them, you can communicate with other external MIDI hardware like a synthesizer, sequencer. Also, bs-16i can be a background and drove from other apps using Virtual MIDI. Audiobus 3, and Inter-App Audio are supported. You can send bs-16i's output stream to other apps. AUv3 (AudioUnit v3) extension is included. You can use bs-16i in GarageBand, BeatMaker3, AUM as a plug-in instrument. - To load the specified SoundFont / DLS file, the device has to ready free memory larger that file size of it. - This application collects the following information: Device name, OS version, User Location, SoundFont / DLS file name, CoreMIDi I/F name.