I have always had a pretty bad ear and to try and remedy that, I've recorded some ear training exercises using PC software to sequence a piano as per the exercises below. I do this for a minimum of 30 minutes a day, 5 days a week, but I usually end up doing it for more than 30 minutes a day. The exercises are as follows: 1) The lowest note I can sing (which is the G on the 3rd fret of the E string) gets played, and I sing along to it, and then a higher note of the interval I want to learn (such as a Major 2nd) plays, and I sing that. This pattern occurs 4 consecutive times. Every time I sing along with it with either "La, La", or "Do, Rei", or "1, 2". After this pattern ends, it then starts on the higher note (A in this example), and goes back down to the G, and repeats 3 more times. After this is done, there is a slight pause, and the pattern resumes but a semitone higher. I keep signing along until the highest note that is played is at the highest point I can currently comfortably sing without screeching my voice (which is the G on the 12th fret of the G string, or two octaves above the low G I can sing). 2) Then I do the same thing with another interval, usually the next note in the specific scale. Right now I'm only focusing on the natural major scale, so the interval is a Major 3rd. For this I would sing "La, La", or "Do, Mi" or "1, 3". 3) Then it's a pattern of both intervals: the lowest note plays, then the first interval, lowest note plays again, and then the second interval plays. I try to sing a long to all of these, in-tune, and this pattern occurs 4 times before a slight pause and moving up a semitone. 4) This exercises is basically a test. I have folder with a bunch of files. All recordings are the same. There is a cadence/chord progression played (I-IV-V-I), and then the root of the scale is played, followed by one of the intervals I'm learning at that time. For each interval there are 13 recordings, it starts on a C, then a C#, then a D, etc, etc etc, and up to and including the octave higher C. I listen to these (after I feel I can sing the first 3 exercises accurately) and try to guess if the recording is interval A or interval B. If I got 90% right, then I'll move on to another group of intervals... For what it's worth, the groups for the natural major scale are (1) M2 & M3; (2) P4 & P5; (3) M2, M3, P4 & P5; (4) M6, M7 & Octave; (5) M2, M3, P4, P5, M6, M7 & Octave. My reason for asking about this with all of you, is that I've been doing this for about 3 weeks now and I'm still on the first group (M2 & M3) and I struggle to guess it right 60% of the time. Now I'm 34 and my ear has always been bad, so I expect this to take a long time, and I'm okay with that... I just want to make sure this is a good and effective bunch of exercises to do. If anyone thinks I could alter the exercises to make them better, I'd really appreciate the insight. Thanks!