def are_seqs_equal(seq_1,seq_2):
    """
    seq_1: list of (onset,pitch) tuples
    seq_2: list of (onset,pitch) tuples
    
    Returns True if the two lists are equal.
    """
    if len(seq_1)!=len(seq_2):
        return False
    for i in range(len(seq_1)):
        if seq_1[i][0]!=seq_2[i][0] or seq_1[i][1]!=seq_2[i][1]:
            return False
    return True