22The 'Super-desk' King Penny Instrumental Music for Programming - Office Work Ambience Relaxing SongsPro Only
33Stop Overthinking King Penny Songs to Study Maths - Programmers Focus Music to Think and CodePro Only
55Taking Initiative Differential Calculus King Penny Songs to Study Maths - Programmers Focus Music to Think and CodePro Only
66Background for Offices King Penny Workplace Sound Masking - Sounds of Nature Background for OfficesPro Only
88Brainwave Entrainment King Penny Workplace Sound Masking - Sounds of Nature Background for OfficesPro Only
99Binary Brainwaves King Penny Math Mastery: Focus Beats for Coding, Computation, and CalculationPro Only
