======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'Boney M.'
                                     'text_people'  ''
                                         'release'  'Daddy Cool'
                                           'title'  'Rivers of Babylon'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'dance', '70s', 'pop', 'disco']"
                                     'discogstags'  "['electronic', 'funk / soul', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '115.854'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Daddy Cool'
'TBPM' (BPM (beats per minute))                     '115.854'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Rivers of Babylon'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '256000'
'TPE1' (Lead performer(s)/Soloist(s))               'Boney M.'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'funk / soul', 'disco']
'TXXX:lastfmtags'                                   ['80s', 'dance', '70s', 'pop', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.686547'

========================== row from database ==========================
                                              'id'  1295701
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Boney M. - Boney M/Boney M - Rivers of Babilon.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4110586
                                           'mtime'  1620533884
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo Babilon electronic we disco or italo
                                      'tag_artist'  Boney M.
                                     'tag_release'  Daddy Cool
                                       'tag_title'  Rivers of Babylon
                                             'bpm'  115.854
                                    'search_title'  'babylon':3 'of':2 'rivers':1
                                   'search_artist'  'boney':1 'm':2,3
                                  'search_release'  'cool':2 'daddy':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'babilon':6 'disco':3 'electronic':7 'italo':5 'or':9 'waves':2 'we':8
                                    'search_combo'  '00disco':12 '00poprockelectronic':9 'babilon':14 'babylon':3A 'boney':4B 'cool':8C 'daddy':7C 'disco':11 'electronic':15 'italo':13 'm':5B,6B 'of':2A 'or':17 'rivers':1A 'waves':10 'we':16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'dance', '70s', 'pop', 'disco']
                                        'tag_date'  1994
                                     'discogstags'  ['electronic', 'funk / soul', 'disco']

============================== file details ==============================
                                           'mtime'  1620533883.7467654  (2021-05-09 06:18:03)
                             'size'  4110586