1. Introduction
The world has changed after the COVID-19 pandemic, and it has brought with it several challenges. One of
the challenges is the deteriorating mental health of people (Xiang et al., 2020). Ancient nations already used
music for healing (White, 2000). In a generic sense, music can be understood as ‘the science or art of ordering
tones or sounds in succession, combination, and temporal relationships to produce a composition having
unity, and continuity’ (Merriam - Webster, n.d.).
Several scientific studies talk about the health benefits of music, while music can also be a means of
expressing emotions (Jonas-Simpson, 1997; Stewart et al., 2019). Research shows that when choosing music,
we consider not only preferences (for example, the name of the artist), but also the topic (celebration,
punishment), focus or influence on mood (happy, sad) (Lee and Bownie, 2004; Bischoff et al., 2008, 2009),
which only emphasises the aspect of regulation, modification, or gradation of moods.
Many researches indicate that music on the defensive level represents an important regulator of moods and
emotions (Thayer et al., 1994), while acting on the defensive level can be a key reason for listening to music
(North et al., 2000; Juslin and Sloboda, 2001) and even an element of therapy (Deliege and Sloboda, 2004;
Ruud, 1997; Sloboda, 1992; Juslin and Sloboda, 2001), for example in mental disorders such as depression
(Parker and Brown, 1982; Rippere, 1977; Chan et al., 2011). The use of music for mood regulation
presupposes the selection of appropriate music in the context of the mood (Markov and Matsu, 2014).
In this context, music therapy can be mentioned as an important area, which represents an important area
in research and therapeutic posts, while it can help in the treatment of oncological patients (Martí-Augé et
al., 2015), in the therapy of patients with dementia (Lam et al., 2020), as a tool for therapy with autistic
children (Sharda et al., 2019), but also for stress reduction (de Witte et al., 2022). For proper use and
application in practice, it is necessary to study the impact of music in order to fulfill the goal of improving
the quality of life.
In order to be able to determine the effect on mood, it is possible to use the classification of moods based
on the music of the psychological model (Thayer, 1990; Thayer et al., 1994). The model records emotional
states with the help of two variables, which are oriented towards the energy that results from the music and
the positivity or negativity referred to as stress. The model can be recorded on the coordinate axis, creating
four dimensions of influence on mood, namely: exuberance, anxiety, frustration, contentment, and
depression (Bhat et al., 2014). Equally important is the overall perception of music and the creation of an
attitude. Within attitudes, it is appropriate to examine the conative component (a measure of knowledge)
and the affective component (a measure of emotional reaction) of attitudes (Ajzen and Fishbein, 1975), while
these components can also be used in the examination of attitudes to music (Čvirik, 2022).
In our paper, we focus on the music of the Beatles, specifically the ‘Yellow Submarine’ album (The Beatles,
2009a, 2009b). The Beatles were an English rock band formed in Liverpool in England, comprising John
Lennon, Paul McCartney, George Harrison and Ringo Starr (who replaced Pete Best). The Beatles represent
an icon in culture (Tessler and Long, 2022) and it is no exaggeration to say that they influenced the whole
world (Collins, 2020). In addition to being a world cultural icon (Lemonnier, 2016), the Beatles are an element
of cultural heritage and an important element of tourism in Liverpool (Kinsella and Peters, 2022) and even
an object of scientific and study interest (Howard, 2022).