Metronomes

Metronomes are used to help musicians stay on a specific tempo, and are usually used during the practice of new passages/music sheets. Metronome markings have been notated in orchestral repertoire for centuries, with notable composers such as Ludwig Van Beethoven frequently including metronome markings within their manuscripts. These special apparatuses come in different forms, too: most often, mechanical, digital, and click track. Nowadays, musicians might use the "metronome" feature on their phone or laptop, though some enjoy the antiquity of a swinging pendulum within a wooden pyramid. 

Musicca Metronome (https://www.musicca.com/metronome): This metronome can be calibrated anywhere from 30 BPM - 244 BPM. Each bar starts with a louder, emphasized beat, followed by the normal-level beats. The number of beats depends on what time signature you choose, whether it's the typical 4/4 or an irregular 9/4. 

Metronome Online (https://www.metronomeonline.com/): This metronome allows a user to customize the woodblock sound of the metronome via an interactive menu. The calibration ranges from 40-200 BPM, and even includes linguistic tempo markings like andante, presto, etc. 

iMusicSchool Metronome (https://www.imusic-school.com/en/tools/online-metronome/): This metronome possesses a wide variety of rhythm patterns that affect which beat is stressed whilst the metronome is playing. A table of basic tempo comparisons is also provided to match up linguistic tempo markings with their respective numerical values. The calibration ranges from 20-300 BPM and can be downloaded on Android as well as Mobile devices.

Virtual Sheet Music Metronome: (https://www.virtualsheetmusic.com/metronome/?srsltid=AfmBOor_DH_N6Jb4Vwx_xVn4AYPqkmPT1Fx0t7ORMynJCK3tGdNdlTMc): This metronome allows for starting and stopping playback using an on-screen button or the spacebar. With a calibration from 1-400 BPM, variety of digital/analog sounds, and a "tempo tapper" feature in which users can create their own tempo by pressing the "T" key.