To see an isotope's level scheme hover your mouse over it and click the "nndc" (National Nuclear Data Center) option.
If the isotope has an article published by the MoNA collaboration there will be a second option in drop down menu which takes you to the journal.
Every isotope plays a different note (the notes get higher as the number of neutrons increase and the wavelength gets longer as the number of protons increase) to play the note, click on it.