A lesson plan is the instructor's road map of what learners need to learn and how it will be done effectively in the classroom. Lesson plan provides a teacher with a general general outline of teaching goals, learning objectives and means to accomplish them. A successful lesson plan addresses and integrates three key components which are learning objectives, learning activities  and assessment to check for learner's understanding.

characteristics of a well planned music lesson

1. Teacher's activities: a teacher needs to explain the activity in detail to make sure that learners  understand what is expected on  the activity 
2. Learners activities: learners will follow the instructions from the teacher ,answering questions, work in groups  to solve a problem,play music games and perform dance moves.
3. Assessment:Assessments will be used to check the level of understanding of learners  , we can use informal and formal assessments to evaluate learner's understanding of concepts .

A well planned lesson plan leads the teacher in the right direction in order to reach the lesson outcomes, it makes possible to easily choose effective teaching strategies and learning activities, it helps to manage the amount of content that has to be taught and it allows the teacher to plan alternative procedures beforehand.