Might be a good idea if you are using Windows, but if you are using a Mac, you have to install the vintage extension Soundflower too. At least i crashed my audio interface driver while testing the Xtrapler Demo and installing Soundflower.
Thanks for the review and feedback. We appreciate the time you took to write it and comment on potential features. The DropDown note/octave is something that we've considered, however we've noted as well that there are two implementations of MIDI chart, one that use MIDDLE C (note #60; $3C) is C3 (C in the 3rd octave). However, another convention adopted mainly by Yamaha Corp. for their synthesizer products which parallels the Octave Designation System used in Music Education formulated by the Acoustical Society of America where Middle C is designated "C4" instead. As this situation may be confusing for some artists, we've preferred to go with the note number value instead.