009a, 2009b) also found differences among different ‘genres’ of TV programmes and
movies. This suggests that different text types need to be studied separately. One
spoken text type that remains under-investigated is song lyrics. Few studies prior to the
present study investigated the vocabulary of songs (Murphey & Alber, 1985; Murphey,
1990; Murphey, 1992; Meara, 1993), which is rather surprising given the popularity of
English songs with language learners inside and outside the classroom. These studies
were indicative of a smaller vocabulary load of English song lyrics in comparison to
other authentic spoken text types, which renders them particularly suitable for use with
lower level learners. However, it is hard to draw any strong conclusions from this
research as the evidence is either indirect (Murphey & Alber, 1985; Murphey, 1990;
Murphey, 1992) or based on too small a sample (Meara, 1993). The present study will
address this gap by using a larger data sample than was used previously.
Songs in SL Learning
A number of studies on second language learners have shown songs to be effective in
learning vocabulary (Coyle & Gόmez Gracia, 2014; Rukholm, 2011; Salcedo, 2010;
Alipour et.al., 2012; Medina, 1990; Hahn, 1972). Songs have several advantages over
other authentic spoken texts that would be facilitative of vocabulary learning. One of
these relates to the number of repetitions. It is well established in Second Language
Vocabulary Acquisition Literature that repeated encounters with words generally lead
to better learning (e.g. Webb, 2007; Chen & Truscott, 2010). In addition to natural
repetitions that occur in texts, songs offer additional repetitions through the choruses
which are repeated several times in a given song. Murphey (1992) analysed the
discourse properties of 50 pop songs and found that words were repeated three times on
average in a given song, which suggests that pop songs are quite repetitive. Another
way that songs increase repetitions is through repeated listening. Repeated listening to
the same song is quite normal and rather preferable in contrast to other spoken texts
whereas seeing the same movie or the same episode of a TV series more than once is
rather boring. Thus, songs increase the number of encounters with words in a natural