oblique motion

Melodic motion is the quality of movement of a melody, including nearness or farness of successive pitches or notes in a melody. This may be described as conjunct or disjunct, stepwise, skipwise or no movement, respectively. See also contrapuntal motion.

Parallel motion is when two melodies move in the same direction while keeping the intervals between the notes of each melody the same. For example, if both melodies are ascending, and one melody is always exactly a 3rd higher than the other, then that is parallel motion.

Motion, with regards to counterpoint, is the relationship between two notes in different voices and how they "move", with reference to each other, as the score progresses. Motion where one voice does not move and the other does is called oblique motion.

In traditional four-part harmony, it is important that lines maintain their independence, an effect which can be achieved by the judicious use of the four types of contrapuntal motion: parallel motion, similar motion, contrary motion, and oblique motion.

According to the nature of the movement, motion is classified into three types as follows: Linear Motion. Rotary Motion. Oscillatory Motion.

Rectilinear, Circular and Periodic motion For example : Motion of train on track, motion of ants in a straight path,motion of freely falling stone from top of the building towards the ground. Circular Motion: Motion of object in a circular path is called circular motion.

In parallel motion, two voices move in the same direction by the same generic interval. For example, the following two voices both move up by a step. Note also that both dyads form the same generic interval (sixth).

It allows a rod moving practically straight up and down to transmit motion to a beam moving in an arc, without putting significant sideways strain on the rod.

y=xtanθ(1−Rx)

There can be various types of motion including oscillatory, rotational, transactional, uniform, non-uniform, periodic, circular and linear.

Types of Motion

• Linear Motion. In linear motion, the object moves from one position to another in either a curved direction or a straight line.
• Rotary Motion. Rotary motion is a sort of motion in which the object moves in a circle.
• Oscillatory Motion.
• Periodic Motion.

According to the nature of the movement, motion is classified into three types as follows:

• Linear Motion.
• Rotary Motion.
• Oscillatory Motion.