======================== unified (from filesystem) ========================
                                         'bitrate'  '174.488'
                                        'duration'  '184'
                                          'artist'  'The Hues Corporation'
                                     'text_people'  ''
                                         'release'  'Disco Fever'
                                           'title'  'Rock The Boat'
                                           'quals'  ("['Q-HAP-4', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-3', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['disco', 'soul', '70s', '60s', 'motown']"
                                     'discogstags'  "['funk / soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '20'
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '107.8'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '0E10C614'
'TALB' (Album/Movie/Show title)                     'Disco Fever'
'TBPM' (BPM (beats per minute))                     '107.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Rock The Boat'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Hues Corporation'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19/20'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'funk / soul'
'TXXX:lastfmtags'                                   ['disco', 'soul', '70s', '60s', 'motown']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+0.26 dB'
'TXXX:replaygain_track_peak'                        '0.440314'

========================== row from database ==========================
                                              'id'  1527210
                                            'path'  /data/Music/Bulk/00poprockelectronic/Disco 70_s 80_s/Disco Fever/The Hues Corporation - 19 - Rock The Boat.mp3
                                         'working'  None
                                         'bitrate'  174
                                    'duration_sec'  184
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  4021550
                                           'mtime'  1620537707
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 70_s 80_s 19 electronic we disco italo
                                      'tag_artist'  The Hues Corporation
                                     'tag_release'  Disco Fever
                                       'tag_title'  Rock The Boat
                                             'bpm'  107.8
                                    'search_title'  'boat':3 'rock':1 'the':2
                                   'search_artist'  'corporation':3 'hues':2 'the':1
                                  'search_release'  'disco':1 'fever':2
                                     'search_rest'  '00poprockelectronic':1 '19':6 '70':2 '80':4 'disco':9 'electronic':7 'italo':10 's':3,5 'we':8
                                    'search_combo'  '00poprockelectronic':9 '19':14 '70':10 '80':12 'boat':3A 'corporation':6B 'disco':7C,17 'electronic':15 'fever':8C 'hues':5B 'italo':18 'rock':1A 's':11,13 'the':2A,4B 'we':16
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  5B
                                           '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-3', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-4', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['disco', 'soul', '70s', '60s', 'motown']
                                        'tag_date'  1980
                                     'discogstags'  ['funk / soul']

============================== file details ==============================
                                           'mtime'  1620537706.9887722  (2021-05-09 07:21:46)
                             'size'  4021550