Guitar XzJam Virtual Band at Mac App Store analyse

Guitar XzJam Virtual Band app is a virtual band for guitarist. XzJam Band is good for solo, scale, tempo, time signature and jam training.

Please rate this app and give improvements tips.

Features

Online tabs (show current scale, chord and riff tabs).
Guitar, bass and drums real audio loops (1-2min) with guitar volume and balance control. (Guitar player: XzGuy, Bass player: XzGuy, Drums player: midi notes by XzGuy)
Drums loops. Blues, Rock and Heavy (60, 80, 100, 120, 140, 160, 180 and 200ppm)
Guitar Tuner
Neck Trainer. Find right notes on the neck
Video Jammer. Jam with XzJam Band
Video tutorials

Blues
Five real audio loops
Tempos: 60,80,120,160,200
Positions: E,A,C
Scales: Blues pentatonic

Rock
Five real audio loops
Tempos: 60,80,120,160,200
Positions: G,A
Scales: Minor pentatonic

Heavy
Seven real audio loops
Tempos: 60,80,120,160,200
Positions: E,A,D
Scales: Minor pentatonic, scale runs, XzShreds

Jazz
Seven real audio loops
Tempos: 60,80,120,160,200
Time signatures: 4/4,3/4, 5/4,7/4
Scales: Bebop dominant, G Dorian

Ballad
Three real audio loops
Tempos: 60,80,120,160,200
Scales: Minor pentatonic