In 1969, Gibson’s parent company (Chicago Musical Instruments) was taken over by the conglomerate ECL. Gibson remained under the control of CMI until 1974 when it became a subsidiary of Norlin Musical Instruments. These ownership changes, often called the “Norlin Era,” caused Gibson products of the time to decline in quality. Les Paul designs were altered and a reinforced upper neck volute to decrease headstock breaks was added. Neck woods were changed from one-piece mahogany to a three-piece maple design. The body was also changed from one-piece mahogany with a maple top to multiple slabs of mahogany with multiple pieced maple tops. This is referred to as “multipiece” construction, and sometimes incorrectly referred to as a “pancake” body. The expression “pancake body” actually refers to a body made of a thin layer of maple sandwiched between two slabs of mahogany, with a maple cap. The grain of the maple was placed at 90 degrees to that of the mahogany. The “pancake”-like layers are clearly visible when looking at the edge of the guitar. This process is also known as “crossbanding”, and was done to make use of less expensive and more readily available thinner mahogany. Crossbanding was phased out by 1977.
In this era, Gibson began experimenting with new models, such as the Les Paul Recording. This guitar was generally unpopular with guitarists because of its complex electronics. Less noticeable changes included, but were not limited to, optional maple fingerboards (added in 1976), pickup cavity shielding, and the crossover of the ABR1 Tune-o-matic bridge into the wide “Nashville” bridge. During the 1970s, the Les Paul body shape was incorporated into other Gibson models, including the S-1, the Sonex, the L6-S, and other models that did not follow the classic Les Paul layout.