I was reading an article about how modern music features fewer key changes than 40, 30 , or even 10 years ago. Since 2010 only one number 1 in the US has featured a key change.

Key changes are included in music to add interest, denote a change of feeling or mood, and to surprise the listener. If the most popular music is now being produced with limited surprises, it’s because our tastes are changing towards more common and simplified content. Although they can be seen as trite and formulaic if used the same way all the time, they do provide variety and a diverse listen.

Don’t do that in your learning – make sure to add key changes, change the tempo, and make sure you’re not auto tuning the narrative to sound ‘perfect’. The variety and unequal tone will differentiate your offer and make it more interesting for people who use it.