I cannot carry a tune; it is a ***very big deal*** for me and I would much prefer to be able to sing. I am not "amusic" (http://www.nbcnews.com/health/cant-carry-tune-save-your-life-you-may-be-amusic-835123
describes what it is) in that I perceive/discern nuanced variety in tone just fine, and possibly even better than many folks, but I cannot ***produce*** the right melody by singing - I know in my mind how the melody should be produced, but cannot actually make my voice follow what my mind knows to be right. It is extremely unpleasant and embarrassing, especially in group settings in which people sing together. Also, I grew up in an extended family of professional musicians who ridiculed my inability to carry a tune when I was a child. I wish I could sing!