int getNumSeqs();
void set(int, string); //unaligned - should also set length
void set(int, Sequence); //unaligned - should also set length
Sequence get(int); //returns sequence name at that location
int getNumSeqs();
void set(int, string); //unaligned - should also set length
void set(int, Sequence); //unaligned - should also set length
Sequence get(int); //returns sequence name at that location