Moreover, because of the limited airplay Rush's previous extended-length songs received, Permanent Waves included shorter, more radio-friendly songs such as "The Spirit of Radio" and "Freewill", two songs that helped Permanent Waves become Rush's first US Top 5 album.
Selain itu, karena sebelumnya lagu Rush yang berdurasi panjang yang diputar sulit diterima, Permanent Waves memiliki lagu-lagu pendek, lagu radio-friendly seperti "The Spirit of Radio" dan "Freewill", dua lagu yang membantu Permanent Waves menjadi US Top 5 album Rush pertama.