Building your song in FL Studio allows you the freedom to add drums, harmonies, sounds, and instruments. This will usually come in the form of virtual instruments, MP3 files, WAV files, software plugins, and the like. You will be adding all of these elements as channels in the step sequencer, as discussed in previous chapters. There are many ways to record your data into the step sequencer. You can use your mouse and draw your chosen notes into the Piano roll feature, physically play and perform a melody using a MIDI keyboard, press the keys on your actual computer (QWERTY) keyboard, or manually enter each step within the step sequencer. The step sequencer also has the added functionality of using the Graph editor and Keyboard editor. Some people prefer to perform their melodies using a MIDI keyboard because of the hands-on feel and touch sensitivity of the keys, which can later be edited and quantized if certain notes are slightly out of sync.