仕事効率アップのためのbgm

The New and Improved Me

The Duke at Home

The Right Method

Musical Inspiration

The Key to the Mind

The Rhythm in the Tunes

A More Productive Day

Music Is the Way

Never Pass up a Chance

The Art of Your Life

The Duke Takes You on

Wake up to the Present

Jump Start

Sticking to the Plan

Hands off the Pause Button

A New Spin on the Old Idea

Able to Concentration

Study the New Day

Hard Work

This Is It

Learn the Suite

The New Way to Think

The Office Is the Place to Be

Concentration Is the Key

Concentration Revamped

The Boss at Work

Up and at'em

The Best Study Music

The Rewiring of the Brain

Sight Reading Time