▁works , ▁which ▁include ▁N ights ▁in ▁the ▁Gard ens ▁of ▁Spain ▁and ▁S iet e ▁can ciones ▁popular es ▁españ olas ▁(" Se ven ▁Spanish ▁Fol ks ongs ", ▁for ▁voice ▁and ▁piano ). ▁Compos ers ▁such ▁as ▁Fernando ▁Sor ▁and ▁Francisco ▁Tar reg a ▁established ▁the ▁guitar ▁as ▁Spain ' s ▁national ▁instrument . ▁ ▁Modern ▁Spanish ▁folk ▁artists ▁ab ound ▁( Mil ▁i ▁Maria , ▁Russian ▁Red , ▁et ▁al .) ▁modern izing ▁while ▁respect ing ▁the ▁trad itions ▁of ▁their ▁for eb ears . ▁ ▁Fl amen co ▁grew ▁in ▁popular ity ▁through ▁the ▁ 2 0 th ▁century , ▁as ▁did ▁northern ▁styles ▁such ▁as ▁the ▁C elt ic ▁music ▁of ▁Gal icia . ▁French ▁classical ▁compos ers , ▁from ▁B iz et ▁to ▁R avel , ▁also ▁drew ▁upon ▁Spanish ▁them es , ▁and ▁distinct ive ▁Spanish ▁gen res ▁became ▁univers ally ▁recognized . ▁ ▁Fol k ▁music ▁rev iv als ▁or ▁roots ▁rev iv als ▁also ▁en comp ass ▁a ▁range ▁of ▁phen omena ▁around ▁the ▁world ▁where ▁there ▁is ▁a ▁renew ed ▁interest ▁in ▁traditional ▁music . ▁ ▁This ▁is ▁often ▁by ▁the ▁young , ▁often ▁in ▁the ▁traditional ▁music ▁of ▁their ▁own ▁country , ▁and ▁often ▁included ▁new ▁incorpor ation ▁of ▁social ▁aw aren ess , ▁causes , ▁and ▁evolution s ▁of ▁new ▁music ▁in ▁the ▁same ▁style . ▁Nueva ▁canción , ▁a ▁similar ▁evolution ▁of ▁a ▁new ▁form ▁of ▁soci ally ▁committed ▁music ▁occurred ▁in ▁several ▁Spanish ▁speaking ▁countries . ▁ ▁First ▁British