The basic tenets, drawn from ancient sources like the Talmud as well as later sages, include the attributes of God in Judaism: one and indivisible, preceding all creation which He alone brought into being, eternal, omniscient, omnipotent, absolutely incorporeal and beyond human reason. Maimonides delineated this understanding of a monotheistic, personal God in six articles concerning His status as the sole Creator, His oneness, His impalpability, that He is first and last, that God alone may be worshiped and no other, and that He is omniscient.
Haredi Judaism advocates segregation from non-Jewish culture, although not from non-Jewish society entirely. It is characterised by its focus on community-wide Torah study. Haredi Orthodoxy's differences with Modern Orthodoxy usually lie in interpretation of the nature of traditional halakhic concepts and in acceptable application of these concepts. Thus, engaging in the commercial world is a legitimate means to achieving a livelihood, but individuals should participate in modern society as little as possible. The same outlook is applied with regard to obtaining degrees necessary to enter one's intended profession: where tolerated in the Haredi society, attending secular institutions of higher education is viewed as a necessary but inferior activity. Academic interest is instead to be directed toward the religious education found in the yeshiva. Both boys and girls attend school and may proceed to higher Torah study, starting anywhere between the ages of 13 and 18. A significant proportion of students, especially boys, remain in yeshiva until marriage (which is often arranged through facilitated dating see shiduch), and many study in a kollel (Torah study institute for married men) for many years after marriage. Most Orthodox men (including many Modern Orthodox), even those not in Kollel, will study Torah daily.
From the late 1950s, when Peterson gained worldwide recognition as one of the leading pianists in jazz, he played in a variety of settings: solo, duo, trio, quartet, small bands, and big bands. However, his solo piano recitals, as well as his solo piano recordings were rare, until he chose to make a series of solo albums titled Exclusively for My Friends. These solo piano sessions, made for the Musik Produktion Schwarzwald (MPS) label, were Peterson's response to the emergence of such stars as Bill Evans and McCoy Tyner.
Some cognoscenti assert that Peterson's best recordings were made for MPS in the late 1960s and early 1970s. For some years subsequently he recorded for Granz's Pablo Records after the label was founded in 1973. In the 1990s and 2000s he recorded several albums accompanied by a combo for Telarc.
In the 1980s he played successfully in a duo with pianist Herbie Hancock. In the late 1980s and 1990s, after a stroke, Peterson made performances and recordings with his protg Benny Green.