Whether you need to write guitar tablature to quantify the chords of a rhythm part or want to look up the chord progression of a familiar tune, smartphone apps give you access to the musical notation you need in the studio. Apps such as Guitar Chords and Tabs show you chords and tabs from hit songs.
Sequencers such as Dubstep Producer and Music Riff Studio enable you to alter samples to suit your composition and create songs using the sonic patterns you develop. Loop-based composition tools can work with purchased loops or sound sequences you build yourself. Because your smartphone gives you a built-in touchscreen, you're freed from reliance on pointing devices and external peripherals.
