I am having trouble with the short appoggiaturas (leaping from the appoggiatura to the main chord) in measures 18-29 and 162-169 of "The Great Gate" from Pictures at an Exhibition. Also, the large leaps of both hands in opposite directions in m. 89-106 and 114-161. I know these sections hands separate, but I am having trouble joining hands without missing half the notes because I watch where one hand lands but not the other. I try it at a slow tempo, but even then I can't seem to get it.Any suggestions for how to execute these large leaps? Any help is much appreciated!