s (bottom) in
Cubase 6 Virtual instruments exist for essentially every musical instrument type, emulating various types of synthesis, orchestral instruments, drums, guitars, pianos, and even recreations of specific models of hardware synthesizers and classic keyboards. Software synthesizers represent the full range of
synthesis methods, including
subtractive synthesis (including
analog modeling, a subtype),
FM synthesis (including the similar
phase distortion synthesis),
physical modelling synthesis,
additive synthesis (including the related
resynthesis), and
sample-based synthesis. Many popular hardware synthesizers are no longer manufactured but have been emulated in software, Popular synthesizers such as the
Moog Minimoog,
Yamaha CS-80 and
DX7,
ARP 2600 and
Odyssey,
Sequential Circuits Prophet-5,
Oberheim OB-X,
Roland Jupiter and
Juno Series,
Korg M1, and dozens of other classics have been recreated in software, with some versions officially endorsed by or even released by the original manufacturer. There is also a variety of popular software synthesizers that are exclusively software and not emulations of hardware synthesizers. Examples include
Spectrasonics' Omnisphere,
Native Instruments Massive, Future Audio Workshop's Circle,
Xfer's Serum, Vital Audio's Vital,
Arturia's Pigments, u-he's Zebra, and even the Alchemy synth integrated in
Logic Pro, which developed from the original Camel Audio version after that developer was acquired by
Apple. Specific models of classic
keyboards, such as the
Hammond B-3 organ,
Rhodes and
Wurlitzer electronic pianos,
Mellotron, and others have been recreated as virtual instruments. These software recreations recreate the sounds and functionality of the original instruments, while being more readily available, less expensive to acquire and maintain, and often having additional features the originals did not. Sampled
pianos and piano emulations are also a popular virtual instrument category, with several examples sampling specific models by
Steinway,
Yamaha,
Bösendorfer,
Fazioli,
C. Bechstein,
Blüthner, and others. Some piano VIs even sample a specific piano, such as
Abbey Road Studios' "Mrs Mills Piano," the piano at
Château d'Hérouville studio, and even the pianos personally owned by
Alicia Keys and
Hans Zimmer. Another popular virtual instrument category is drums, with many drum VIs available. Some of these companies offer numerous expansion libraries for their drum VIs that allow users to add additional drum kits and drum patterns, often times played by such notable drummers as
Roger Taylor,
Chad Smith,
Clyde Stubblefield, and
John Tempesta, and recorded by such notable
engineers as
Hugh Padgham,
Al Schmitt,
Steve Albini, and
Eddie Kramer, in such recording studios as
Capitol,
Real World,
Rockfield Studios, and others. Companies including
EastWest,
Vienna Symphonic Library,
Spitfire Audio have released extensive and detailed VIs focused on
orchestral instrumentation, partnering with composers like Hans Zimmer, orchestras such as the
BBC Symphony Orchestra, and utilizing recording spaces such as
Abbey Road Studios,
EastWest Studios and
Maida Vale Studios. Also of note is software like
Csound,
Nyquist, and
Max (software), which can be used to program software instruments. ==Comparison to hardware synthesizers==