The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From UANGEL Corp.:
The Touch Band : Halloween application is a lifesaver in so many ways: a) It would help you get that new tune in your head out anywhere and everywhere. b) It would replace the absent band member or instrument when you jam c) It makes your music a whole lot cooler! Touch Band : Halloween is the one application that will give you high quality sound effects while you play five different instruments and not all of them you might be a master of: the Piano, Drums, Guitar, Bongo Drums and OcarinaInstruments! Each of the instruments comes with the highest degree of sophistication and sound quality. You can jam anywhere you want and record your songs with great sound clarity and nowhere do you have to feel that you are not using the real instruments! Why? Mostly because Touch Band : Halloween gives you the freedom to explore each instrument to the fullest. You automate the bass drum, play any of the 192 chords on the guitar and switch to Piano or the electric keyboard with almost 80 keys in each! You can experiment with the melodic sounds of the OcarinaInstrument and Bongo Instrument and create real music using your portable device! Check out all the features of the instruments available in Touch Band : Halloween * Drum Instrument - Three Drum Skins: Acoustic, Electronic and Thumb - Four Drum Sounds: Acoustic, Electric, Hip Hop, Dance - Auto-Bass Drum Play: 15 ~ 240 range BPM selection - Record / Play / Recording list * Guitar Instrument - 192 Chords - Preset for Major Chords - Own chord selections: Up to 12 chords - Chord instruction: Real image chord - Record / Play / Recording list * Piano Instrument - Piano Selection: Piano (88 keyboards) / Electronic Piano (76 keyboards) - Keyboard Selection: 1 or 2 lines, width - Easy control for keyboard position - Record / Play / Recording list * Bongo Instrument - Consisting of a pair of larger drum and smaller drum - Two different sounds: Head and Edge - Record / Play / Recording list * OcarinaInstrument - Eight different sounds - Four Ocarina Skins - Record / Play / Recording list