How about a thread of a few bars of classics done as solfege to help internal hearing..:
I will start :
1) ['so do so ] [do so fa] [ la fa do 'so] :
Copeland : Fanfare for the common man
2) [ do do do me do] [me me me so me] [so so so te 'te ] [me me me so]
Wagner :Ride of the Valkyries
Not sure if I have done it correctly but you get the idea..