There are many potential flaws in singing that can ruin a performance. The first problem can be with the vocal entrance. If playing with a live band, the other musicians might be able to accommodate your late or early entry, however, if you are singing karaoke or your entrance is too far off, you may have lost your audience. Similar to bad entrances, singing in time with the accompaniment is crucial. One of the next important things for a good performance is articulate singing. If the audience can not understand most of the words, your performance will not be well received. Perhaps the biggest problem of a bad vocal performance is pitchy singing. Anyone who has watched American Idol hears the word pitchy about ten times an episode to describe performance problems.
Pitch singing is not only the most damaging to a vocal performance, but is historically the most difficult vocal problem to correct. One of the causes of pitchy singing is that vocalist can not hear themselves accurately. Other problems include becoming nervous, having poor breath support, and singing in new environments where the singer’s voice sounds different than what they are accustomed too. The latter problem is especially prominent when singing through sound reinforced systems where the amplification equipment change the sound of the voice, and can add artifacts that leave a singer not recognizing their own voice.