Roland Corporation is a pioneering company in the field of electronic musical instruments and equipment. Over the years, they have produced a wide range of popular models across various categories. Here are some of their most notable products:

1. Drum Machines:
   • TR-808 Rhythm Composer: Released in 1980, the TR-808 became one of the most influential drum machines in music history, particularly in hip-hop, electronic, and dance music.
   • TR-909 Rhythm Composer: Introduced in 1983, the TR-909 is another legendary drum machine known for its iconic sounds and its impact on the development of techno and house music.
2. Synthesizers:
   • JUPITER-8: Released in 1981, the JUPITER-8 is a legendary analog synthesizer cherished for its rich, warm sound and versatile programming capabilities. It’s widely used in various music genres.
   • JUNO Series: Roland’s JUNO series includes a range of synthesizers known for their affordability, ease of use, and high-quality sounds. Models like the JUNO-106 and JUNO-60 are particularly popular.
   • D-50: The D-50, released in 1987, was one of the first synthesizers to combine sample-based sounds with digital synthesis methods. It became a classic in its own right, known for its distinctive sound.
3. Digital Pianos and Keyboards:
   • RD Series: Roland’s RD series includes stage pianos renowned for their realistic piano sounds, responsive keyboard actions, and extensive features tailored for stage performance and studio use.
   • FP Series: The FP series consists of portable digital pianos offering authentic piano sounds and compact designs suitable for gigging musicians and home use.
4. Electronic Drums:
   • V-Drums Series: Roland’s V-Drums are widely regarded as some of the best electronic drum kits available. They offer realistic drum sounds, natural response, and a range of features for practice, recording, and performance.
5. Controllers:
   • MIDI Controllers: Roland produces a range of MIDI keyboard controllers, pad controllers, and DJ controllers designed for use with music production software, virtual instruments, and DJ software.
   • Foot Controllers: Roland also offers foot controllers and pedalboards for hands-free control over various musical parameters during live performances and studio recording.

These are just a few examples of the popular models of electronic musical equipment produced by Roland. Their products are known for their high-quality construction, innovative features, and reliability, making them a favorite choice among musicians, producers, and performers worldwide.