======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '283'
                                          'artist'  't.A.T.u.'
                                     'text_people'  ''
                                         'release'  'Zolotaja seria'
                                           'title'  'Odna'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['russian', 'electronic', 'dance', 'female vocalists', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '120.042'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Zolotaja seria'
'TBPM' (BPM (beats per minute))                     '120.042'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Odna'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               't.A.T.u.'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['russian', 'electronic', 'dance', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.16 dB'
'TXXX:replaygain_track_peak'                        '0.516191'

========================== row from database ==========================
                                              'id'  1404733
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/t.A.T.u. - /data/pool/compressed/Music/Bulk/00poprockelectronic-elec-synthy-techy/t.A.T.u/MBZ;#tATu;#Zolotaja seria;#14;#Odna.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  283
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5670892
                                           'mtime'  1621695884
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat data pool compressed Music Bulk 00poprockelectronic elec synthy techy MBZ;#tATu;#Zolotaja seria;#14;#Odna electronic generic or radio dance
                                      'tag_artist'  t.A.T.u.
                                     'tag_release'  Zolotaja seria
                                       'tag_title'  Odna
                                             'bpm'  120.042
                                    'search_title'  'odna':1
                                   'search_artist'  'a':2 't':1,3 'tatu':5 'u':4
                                  'search_release'  'seria':2 'zolotaja':1
                                     'search_rest'  '00poprockelectronic':1 '14':20,23 'atu':32,34 'bulk':9 'compressed':7 'dance':3 'data':5 'elec':10 'electronic':25 'generic':2 'mbz':13,16,28,30 'music':8 'odna':21,24 'or':26 'pool':6 'radio':27 'seria':19,22 'synthy':11 't':29,31 'tatu':14,17 'techy':12 'trapbeat':4 'zolotaja':15,18,33,35
                                    'search_combo'  '00poprockelectronic':9 '14':28,31 'a':3B 'atu':40,42 'bulk':17 'compressed':15 'dance':11 'data':13 'elec':18 'electronic':33 'generic':10 'mbz':21,24,36,38 'music':16 'odna':1A,29,32 'or':34 'pool':14 'radio':35 'seria':8C,27,30 'synthy':19 't':2B,4B,37,39 'tatu':6B,22,25 'techy':20 'trapbeat':12 'u':5B 'zolotaja':7C,23,26,41,43
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'electronic', 'dance', 'female vocalists', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695884.4838824  (2021-05-22 17:04:44)
                             'size'  5670892