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Musical instruments used in Baroque music were partly used already before, partly are still in use today, but with changed technology. The movement to perform music in a historically informed way, trying to recreate the sound of the period, led to the use of historic instruments of the period and to the reconstruction of instruments.
The following table lists instruments, classified as brass instruments, woodwinds, strings, keyboard and basso continuo. The continuous bass is played by a group of instruments, depending on the given situation. Many instruments have an Italian or French name which is used as a common name also in English. The use of instruments by composers is shown in examples mostly by Johann Sebastian Bach.
Table of instruments
|Common name||Baroque era name||Type||Plural||Baroque era plural||Example of use by Bach||Notes|
|trumpet||tromba||it||brass, trumpet||trumpets||trombe||BWV 172||see also Baroque trumpet|
|tromba da tirarsi||tromba da tirarsi||it||brass, trumpet||trombe da tirarsi|
|high trumpet||clarino||it||brass, trumpet||clarini|
|cornett||cornetto||it||brass, cornett||cornetts||cornetti||used with trombones|
|corno da caccia||corno da caccia||it||brass, horn||corni da caccia|
|corno da tirarsi||corno da tirarsi||it||brass, horn||corni da tirarsi|
|timpani||timpani||it||percussion||Christmas Oratorio||used with trumpets|
|recorder||flauto (dolce)||it||woodwind, recorder||recorders||flauti (dolci)||BWV 39|
|descant recorder||flauto piccolo||it||woodwind, recorder||flauti piccoli||BWV 96, BWV 103|
|transverse flute||flauto traverso||it||woodwind, flute||transverse flutes||flauti traversi|
|oboe d'amore||oboe d'amore||it||woodwind, oboe||oboes d'amore||oboi d'amore|
|tenor oboe||taille||fr||woodwind, oboe||tailles|
|oboe da caccia||oboe da caccia||it||woodwind, oboe||oboes da caccia||oboi da caccia|
|violin||violino||it||string, Baroque violin||violins||violini|
|violoncello piccolo||violoncello piccolo||it||string, cello||violoncelli piccoli|
|viola d'amore||viola d'amore||it||string, viola||viole d'amore|
|viola da gamba||viola da gamba||it||string, viol||viole da gamba||BWV 245 Aria "Es ist vollbracht!"||Basso continuo, but sometimes solo|
|continuo||basso continuo||it||bass group|
The typical orchestra of the Baroque period is based on string instruments (violin, viola) and continuo. A continuous bass is the rule in Baroque music; its absence is worth mentioning and has a reason, such as describing fragility.
For Bach, some instruments carry symbolic meaning such as a trumpet, the royal instrument of the Baroque, for secular and divine majesty: three trumpets for the Trinity. In arias, Bach often uses obbligato instruments, which correspond with the singer as an equal partner. In his early compositions he used instruments that had become old-fashioned, such as viola da gamba and violone.
The basso continuo, or short: continuo, the typical bass group of the period, consists of a group of instruments, depending upon the other instruments playing and the performance location. A group may consist of cello, double bass (an octave lower) and organ. A bassoon is typically playing when other wind instruments are called for. While an organ will be played in church, a harpsichord will be used in secular surroundings.
The trumpet is the royal instrument of the Baroque, representing secular and divine majesty. Three trumpets symbolize the Trinity in an aria of Bach's BWV 172, addressing the "Heiligste Dreifaltigkeit" (Most holy Trinity), where the bass voice is accompanied only by three trumpets and timpani.
Recorders (flauti dolci) are sometimes used to express humility or poverty, such as in Bach's cantata Brich dem Hungrigen dein Brot, BWV 39.