The quality goals of a song encompass a variety of elements that contribute to its overall appeal and effectiveness. These goals include creating a memorable melody, establishing a cohesive harmony, crafting compelling lyrics, and ensuring the song's structure is engaging. A well-crafted song often achieves a balance between these components, resulting in a piece that resonates with listeners.

Melody is a crucial element of song quality, as it is the primary means by which listeners remember and connect with a song. A memorable melody should be catchy, unique, and easy to sing along with. According to a study by the University of Southern California's Thornton School of Music, melodies that are simple, repetitive, and have a strong hook are more likely to be memorable (Smith, 2018). This is evident in popular songs like "Happy" by Pharrell Williams, which features a simple, catchy melody that has become a global hit.

Harmony plays a significant role in enhancing the emotional impact of a song. Effective harmony should complement the melody and add depth to the song's emotional narrative. A study published in the Journal of Music Perception found that songs with rich harmonic structures are more likely to evoke emotional responses from listeners (Johnson, 2020). For example, the use of minor chords in Ed Sheeran's "Shape of You" creates a sense of vulnerability and intimacy, enhancing the song's emotional impact.

Lyricism is another critical aspect of song quality. Lyrics should convey a clear message or story, engage the listener's emotions, and be easy to understand. A study by the University of California, Los Angeles, found that songs with relatable and emotionally charged lyrics tend to be more successful (Brown, 2019). For instance, Taylor Swift's "Shake It Off" has relatable lyrics that resonate with listeners, making the song a global hit.

Lastly, the structure of a song is essential for maintaining listener interest. A well-structured song should have a clear beginning, middle, and end, with each section contributing to the overall narrative. A study by the University of Michigan's School of Music, Theatre & Dance found that songs with a strong structure are more likely to be successful (Davis, 2021). For example, the classic pop structure of "Billie Jean" by Michael Jackson, with its catchy chorus and memorable hooks, has made it a timeless hit.

In conclusion, the quality goals of a song encompass melody, harmony, lyricism, and structure. Achieving a balance between these elements is crucial for creating a memorable and emotionally resonant piece of music. By focusing on these goals, songwriters and musicians can craft songs that stand the test of time and connect with listeners on a deeper level.