Depending on the cause, leg pain can occur in one leg only or in both legs. Typically, the leg pain is a result of tissue inflammation that is caused by injury or disease. Either injury or chronic disease can cause inflammation to any of the tissues of the leg and lead to leg pain.
The repeated d in the first measure is the pedal point. Play (helpÂ·info) In tonal music, a pedal point (also pedal tone, pedal note, organ point, or pedal) is a sustained tone, typically in the bass, during which at least one foreign, i.e., dissonant harmony is sounded in the other parts.
Piano is a dynamic marking to play quietly but with good tone. The soft pedal smooths out a note's attack, creating a very mellow texture. It is possible to play Forte with the soft pedal, just as possible as it is to play Pianissimo without the soft pedal. The marker is the words una corda (or una corde).