Even though all these modes are derived from the major scale, it is possible to create sounds from some of the modes which are very different to the major scale. The following example demonstrates a melody created from the C dorian mode. This mode is particularly useful for minor key progressions where the IV chord is major, or dominant 7th, as demonstrated in the following example. Notice that the tonality is nothing like a major key even though all the notes are contained in the Bb major scale. This example would be described as having a modal (in this case, Dorian) tonality.
This one has a Phrygian Tonality. Try other modal tonalities by playing the accompanying scale tone chord (e.g., chord IVmaj7, for lydian, V7 for mixolydian, etc.) repeatedly with the left hand while improvising with the right hand using the notes of the mode.
Once you are comfortable with the modes, try improvising with them over a chord progression as demonstrated in this example. The progression here is I VI II V .