======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '207'
                                          'artist'  'Saturday Night Fever'
                                     'text_people'  ''
                                         'release'  'PrimeCuts (Movie Themes)'
                                           'title'  "Stayin' Alive"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lo fi', 'classical remix', 'ost', '4 track', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '120.614'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'PrimeCuts (Movie Themes)'
'TBPM' (BPM (beats per minute))                     '120.614'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         "Stayin' Alive"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Saturday Night Fever'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lo fi', 'classical remix', 'ost', '4 track', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.742668'

========================== row from database ==========================
                                              'id'  1515256
                                            'path'  /data/Music/Bulk/0soundtrack/Unsorted/Saturday Night Fever - Stayin_ Alive - Arthur Fiedler and the Boston Pops.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  207
                                           'genre'  soundtrack-video
                                        'filesize'  4975303
                                           'mtime'  1621489369
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Unsorted Stayin_ Arthur Fiedler and the Boston Pops soundtrack video
                                      'tag_artist'  Saturday Night Fever
                                     'tag_release'  PrimeCuts (Movie Themes)
                                       'tag_title'  Stayin' Alive
                                             'bpm'  120.614
                                    'search_title'  'alive':3 'stayin':1,2
                                   'search_artist'  'fever':3 'night':2 'saturday':1
                                  'search_release'  'cuts':7 'movie':2,3 'prime':6 'primecuts':1 'themes':4,5
                                     'search_rest'  '0soundtrack':1 'and':6 'arthur':4 'boston':8 'fiedler':5 'pops':9 'soundtrack':10 'stayin':3 'the':7 'unsorted':2 'video':11
                                    'search_combo'  '0soundtrack':14 'alive':3A 'and':19 'arthur':17 'boston':21 'cuts':13C 'fever':6B 'fiedler':18 'movie':8C,9C 'night':5B 'pops':22 'prime':12C 'primecuts':7C 'saturday':4B 'soundtrack':23 'stayin':1A,2A,16 'the':20 'themes':10C,11C 'unsorted':15 'video':24
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lo fi', 'classical remix', 'ost', '4 track', 'disco']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489368.818897  (2021-05-20 07:42:48)
                             'size'  4975303