Czech diction for singers: short and long vowels, ř, fixed stress and voicing

Czech vowels come short and long, stress sits on the first syllable of a word, and consonant clusters run as many as five in a row^1,2,4. This page sits in the diction section. The symbols are explained in IPA for singers.

Five vowel qualities, short and long

Czech is a quantity language: it differentiates five vowel qualities that occur as both phonologically short and long¹. The inventory is 10 monophthongal and 3 diphthongal vowel phonemes¹, and the Illustration of the IPA in the Journal of the International Phonetic Association gives the same count². Long vowels are indicated by an acute accent (čárka) or a ring (kroužek)¹.

The letter ě is not a separate vowel. It denotes /ɛ/ after a palatal stop or palatal nasal¹. Short and long counterparts generally do not differ in quality¹, with one exception: the short and long high front vowels differ in quality as well as duration². Czech-language Wikipedia puts long vowels at about twice the duration of short ones⁶. The journal study measured it: about 1.7 for four pairs and only about 1.3 for the high front pair². The measured figures win.

Short vowels are about 3.5 times more frequent than long ones². Long o is very rare and appears almost exclusively in loanwords².

The o and the Italian ideal

The standard Czech o is something between [o(ː)] and [ɔ(ː)], a mid back vowel¹. Some transcriptions write /ɔ/ and /ɔː/ for it¹. Czech vowels are very Italianate, brighter and more open than you would expect, says Glyndebourne’s language coach, who advises singers to think of Italian when singing in Czech⁴. The vowel rules in Italian diction are the closest comparison.

Diphthongs and vowel sequences

The diphthong /ou̯/ is spelled ou¹. The diphthong /au̯/ is spelled au and occurs almost exclusively in words of foreign origin¹. The diphthongs au and eu occur only in loanwords and interjections². Vowel sequences such as ia or io in foreign words are pronounced with an epenthetic /j/ between the vowels¹. Two vowels meeting across a morpheme boundary are separate syllabic nuclei and do not form a diphthong¹.

The glottal stop is not a separate phoneme, and its use is optional¹. In standard pronunciation it is never inserted between two consecutive vowels without an intervening morpheme boundary¹. Bohemian speakers insert a glottal stop before an initial vowel and devoice the word-final obstruent².

Fixed first-syllable stress

Czech has stress fixed to the first syllable of a word². The stress has no lexical or phonological function¹, and its phonetic realization is weak². Long words can have secondary stress, mostly placed on every odd syllable¹. A monosyllabic preposition mostly forms a single metrical unit with the following word and bears the stress².

Vowel length and quality are independent of stress¹. Vowel duration is reserved for marking quantity contrasts, not stress². The vowels are not reduced in unstressed syllables and can be short or long regardless of stress¹. Czech exhibits little vowel reduction, as is typical of syllable-timed languages². Short vowels may undershoot in fast or casual speech².

Intonation distinguishes sentence types, but Czech is not a tonal language¹.

Consonants

The Czech diacritics are š, č, ř, ž, ň, ď, ť, ý, á, í, é, ů, ó, ú and ě⁴.

ř

The phoneme /r̝/, written ⟨ř⟩, is a raised alveolar non-sonorant trill¹. Phonetically it is a trilled fricative². The IPA key gives it as a simultaneous [r] and [ʒ] with no English equivalent³. Its rarity makes it difficult to produce for most foreign learners of Czech, who may pronounce it as [rʒ]¹.

The basic realization of ř is voiced⁶. It loses voicing word-finally and when it is adjacent to a voiceless obstruent². Both /r/ and /r̝/ are trills, though commonly realized with a single contact¹.

Syllabic r and l

The sonorants /r/ and /l/ become syllabic between two consonants or after a consonant at the end of a word¹. Marginally, /m/ and /n/ do the same². The approximant /l/ is mainly pronounced apico-alveolar¹.

Palatals, sibilants and ch

The /ɲ/ is an alveolo-palatal nasal¹. The sounds /c/ and /ɟ/ are alveolo-palatal¹. The IPA key shows /c/ in lať, těšit, ticho, loď and loďka³.

The sibilants /ʃ ʒ t͡ʃ d͡ʒ/ are laminal post-alveolars, usually not considered retroflex¹. The sound /ʃ/ is heard in šelest, štěstí, muž and vážka³.

The phoneme /x/ is written ⟨ch⟩ and /ɦ/ is written ⟨h⟩; they form a special voice pair even though the places of articulation differ¹. The voiceless realization of /ɦ/ is velar [x]¹. The sound /x/ is heard in chomout, prach, nehty and práh³.

Stops

The voiced stops /b d g/ are prevoiced, meaning voiced during closure, and contrast with voiceless unaspirated /p t k/². The sounds /t/ and /d/ can be pronounced as dental stops¹. The consonant inventories of Bohemian and Moravian Czech are the same².

Voicing and assimilation

Assimilation of voice is an important feature of Czech pronunciation¹. Czech prefers adjacent obstruents to agree in voicing². In a consonant group, all obstruents mostly take the voicing of the last consonant, which is regressive assimilation¹. Inside a word that agreement is obligatory: prosba is pronounced [prozba]².

Voiced obstruents are realized voiceless in the pre-pausal position, which is final devoicing¹. Both Bohemian and Moravian Czech devoice obstruents word-finally². The sonorants /m, n, ɲ, j, r, l/ have no voiceless counterparts and are never devoiced¹. Word-final devoicing usually does not occur if the following obstruent is voiced².

Bohemian and Moravian speakers part ways at a word boundary before a vowel. In Moravian Czech the final obstruent becomes the onset of the following syllable and keeps its voicing². Regressive voicing assimilation applies in fewer contexts in Bohemia than in Moravia². The phoneme /v/ does not cause the voicing of preceding voiceless consonants¹.

Combinations of stops (/d/, /t/, /ɟ/, /c/) and fricatives (/s/, /z/, /ʃ/, /ʒ/) usually produce affricates¹. Labiodental [ɱ] is a realization of /m/ before the labiodental fricatives /f/ and /v/, and that assimilation is optional, while the velar assimilation is obligatory¹: /n/ becomes velar [ŋ] before /k/ and /ɡ/¹.

Two identical consonants often merge into one sound, especially in suffixes¹. In prefixes and composite words, lengthened or doubled pronunciation (gemination) is obvious¹.

Clusters and the schwa

Czech words can have up to five consonants in the initial group¹, and clusters run sometimes as many as five in a row⁴. The journal illustration counts differently: as many as four consonants in a syllable onset².

The practical answer is the schwa. The key is to know where to put a very short neutral vowel, so that the singer can sing on a vowel even if there does not appear to be one in the word⁴. In everyday speech the complexity is often reduced, and one strategy is the insertion of a short epenthetic vowel². Stop and fricative sequences, especially voiceless ones, may be simplified to affricates². Open syllables of type CV are the most abundant in Czech texts¹, and about half of all syllables are CV².

Sung versus spoken

Sung Czech is different to spoken Czech⁴. When spoken, Czech tends to be very monotone, without much inflection⁴. There is a substantial gap between formal, highly codified language and the language used in everyday situations². The journal illustration covers everyday speech rather than artificial orthoepic norms². Cheek’s revised guide clarifies fine points of formal pronunciation⁸.

Janáček composed by listening to speech patterns and setting them to music as precisely as he could⁴. The language he employs is colloquial and familiar, full of local color and speech-derived melodic lines⁴. Glyndebourne’s coach argues that performing his works in any language other than the one he chose results in a loss of the visceral quality his music holds⁴.

Repertoire and how to prepare it

Dr. Bree Nichols coaches Czech for singers of Janáček, Dvořák and Smetana⁷. Part two of Cheek’s guide gives texts to major song literature and opera excerpts by Smetana, Dvořák, Janáček, Martinů and Haas⁸. Cheek also wrote performance guides to The Bartered Bride (2010) and Rusalka (2012), each with translations and pronunciation⁸. Dr. Bree Nichols’ notes on Czech diction were published in the 2023 Urtext edition of Dvořák’s Rusalka by Bärenreiter Praha⁷.

Singers are generally at home in Italian, German and French repertoire⁴. The coach’s preparation runs in three steps. The first is an exact idea of what the words mean and a good working translation⁴. Then comes slow speaking of the text and breaking down tricky words⁴. Gradually the vocal line is added, learning which words need modifying in different parts of the voice⁴. Transcribe an aria into IPA for the written side of that work.

Books and coaching

Singing in Czech by Timothy Cheek has chapters on the Czech vowels, consonants, rules of assimilation, approaches to singing double consonants, stress and length, Moravian dialect and an introduction to singing in Slovak⁸. The first part uses IPA to take the reader through each sound of the language, with recordings of native Czech opera singers⁸. The Opera Journal judged the revised edition an excellent text for a class on Czech diction or repertoire⁸. The 2001 edition gave IPA transcriptions as well as an explanation of Czech lyric diction⁸, and Notes, the journal of the Music Library Association, said it set a new and very welcome high standard for teaching lyric diction⁸. Cheek is a pianist, vocal coach and professor of performing arts at the University of Michigan School of Music, Theater & Dance⁸.

Dr. Bree Nichols offers sessions that cover the mechanics of Czech articulation as well as stress and intonation⁷. Her research is centered on Czech phonetics and making the language accessible to non-Czech singers⁷.

Common mistakes

• Reducing unstressed vowels. Czech vowels are not reduced in unstressed syllables¹.
• Mixing up length. Five qualities occur both short and long¹.
• Moving the stress. Stress is fixed to the first syllable².
• Singing ř as [rʒ]. Foreign learners may substitute it¹.
• Letting a final voiced consonant ring. Obstruents devoice word-finally².
• Voicing against the cluster. Prosba is [prozba]².
• Forming a diphthong where there is none. Vowels across a morpheme boundary are separate nuclei¹.
• Leaving a cluster vowel-less. Place a very short schwa so you can sing on a vowel⁴.