This exercise creates random intervals and you should try to identify
  them.
 
  You can give detailed instructions on what intervals and how many of
  them to be asked. The statistics are only recorded when you practise only
  one interval.
 
- 
        New question:
        Alt-n
   
- 
        Repeat:
        Alt-r
   
- 
        Give up:
        Alt-g
    
Table 2.2. Keys used to identify interval
| Minor second: 1 | Perfect fourth: 2 | Major sixth: 3 | Minor ninth: 4 | 
| Major second: q | Diminished fifth: w | Minor seventh: e | Major ninth: r | 
| Minor third: a | Perfect fifth: s | Major seventh: d | Minor decim: f | 
| Major third: z | Minor sixth: x | Perfect octave: c | Major decim: v |