I use it now was a practice tool (when not using another Positive Grid app). Update: The IAP bug has been fixed, nice! If they can get a little more realism out of some of the samples, this will be a no brainer for iOS producers. Export audio and drum tracks via Email or Dropbox. Inter-App Audio and Audiobus support (full integration with BIAS FX, BIAS Amp, BIAS Pedal, and JamUp). 3 MIDI groove packs (80s Pop, Classic Rock and Heavy Metal) available via in-app purchase. 5 new drum kits (80s Rock, Modern FX, Jazz, Progressive Metal and Indie Rock) available as in-app purchases. Recorder feature allows users to overdub guitar riffs on top of the backing drum track. New filter options allow quicker navigation within the MIDI groove library. Improved Play to Find engine for more accurate and faster analysis. New drum kit preset management lets users quickly save and recall custom drum kits. The groove library has been expanded to 380+ realistic drum performances. Completely redesigned user interface for better workflow – new Song Editor, transport controls, Browser, Play to Find, and more. Export your song as MIDI or an audio file (via Dropbox or Mail) Simple and intuitive filter system for easy navigation within the grooves library Drum preset system to save and recall favorite drums Build your own signature drum kits and apply them to your drum track on the fly for instant results 240 MIDI grooves available for purchase (80s Pop, Classic Rock, Heavy Metal) 5 additional drum kits available for purchase (80s Rock, Modern FX, Jazz, Progressive Metal, Indie Rock) 7 studio-quality vintage and modern drum kits Personalize the look of your kit by applying different finishes and changing hardware fittings Further customize your kit by changing the drumhead, dampening devices, pitch, and more Swap out each drum and cymbal to build a kit that matches the needs of your song perfectly Quickly build your own drum kit from the 7 built-in drum sets (Funk, Pop Rock, Cocktail, Country, Metal, Studio and Vintage) Export your song as MIDI or an audio file to other music apps, via Open In, email or Dropbox Use any of the 5 available dynamic presets to get the groove that you’re looking for Song Editor lets you edit drum patterns by changing hit articulations, notations, and the leading hand Use Inter-App Audio to record your riff by incorporating other musical instrument applications Instantly add patterns and drum tracks to the Song Editor Audition each pattern or an entire drum track using X Drummer’s simple controls Build your drum track from scratch using one or more of the 380+ patterns available in the library Apply Quick Filter to search for the exact groove that you want Swap out different drum kits on the fly to instantly audition your existing groove with new sounds Get started quickly by using any of the 60+ pre-made drum tracks available X Drummer can use an audio interface or the built-in mic on your iPad to hear and analyze your riff “Play To Find” instantly listens and searches for a drum track that meshes with your guitar riff Then utilize the simple-yet-robust drum editor to fine-tune your drum grooves and further personalize your song. Record your musical ideas into X Drummer and take them along with you, whether you’re at home, on the road or in the studio. The extensive groove library offers detailed realism, encompassing the subtle nuances of a real drummer and delivering realistic drum performances - not just generic backing tracks. Start your musical journey by playing a simple riff on your guitar - X Drummer listens in real-time, searching for a matching drum performance based on the tempo and feel of your riff. X Drummer is the ultimate drum production tool for guitarists, songwriters and mobile musicians.