| Artist | : | John Petrucci’s Rock Discipline Chromatic Exercise - Alternate Picking Speed Workout |
| Title | : | Guitar Speed Trainer |
| Duration | : | 379 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | John Petrucci’s Rock Discipline Chromatic Exercise - Alternate Picking Speed Workout |
| Title | : | Guitar Speed Trainer |
| Duration | : | 379 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |