======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '220'
                                          'artist'  'Eiffel 65'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 2'
                                           'title'  'Blue (Da Ba Dee)'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'eurodance', 'techno', 'electronic', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '49'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-eurodance'
                                             'bpm'  '128.170'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 2'
'TBPM' (BPM (beats per minute))                     '128.170'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-eurodance'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Blue (Da Ba Dee)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Eiffel 65'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '49'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', 'eurodance', 'techno', 'electronic', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.87 dB'
'TXXX:replaygain_track_peak'                        '0.469345'

========================== row from database ==========================
                                              'id'  1288221
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/2000/049 - Eiffel 65 - Blue (Da Ba Dee).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  220
                                           'genre'  electronic-th-ent-eurodance
                                        'filesize'  4414931
                                           'mtime'  1639511341
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 2000 049 electronic th ent eurodance
                                      'tag_artist'  Eiffel 65
                                     'tag_release'  Billboard Top Pop Singles of 2
                                       'tag_title'  Blue (Da Ba Dee)
                                             'bpm'  128.17
                                    'search_title'  'ba':4 'blue':1 'da':2,3 'dee':5,6
                                   'search_artist'  '65':2 'eiffel':1
                                  'search_release'  '2':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '2000':3 'electronic':4 'ent':6 'eurodance':7 'th':5 'top100':2
                                    'search_combo'  '00poprockelectronic':15 '2':14C '2000':17 '65':8B 'ba':4A 'billboard':9C 'blue':1A 'da':2A,3A 'dee':5A,6A 'eiffel':7B 'electronic':18 'ent':20 'eurodance':21 'of':13C 'pop':11C 'singles':12C 'th':19 'top':10C 'top100':16
                                    'tag_tracknum'  49
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'Q-SYN-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'eurodance', 'techno', 'electronic', 'pop']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1639511340.9605167  (2021-12-14 20:49:00)
                             'size'  4414931