But synalepha is possible (especially of de o-):
To|do e|le|va|ba | mi á|ni|mo in|tran|qui|lo.
Yo | le | da|ré|; mas | no en | el | ar|pa | de o|ro...
And synalepha is the rule, if stress on the initial syllable is weak:
Á o|tra per|so|na en | Ma|drid.
To|da, to|da e|res | per|fec|ta.