======================== unified (from filesystem) ========================
                                         'bitrate'  '143.382'
                                        'duration'  '324'
                                          'artist'  'Technotronic'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  'Pump Up the Jam'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', '80s', 'techno', 'electronic', 'eurodance']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '124.621'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '124.621'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Pump Up the Jam'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Technotronic'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', '80s', 'techno', 'electronic', 'eurodance']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.72 dB'
'TXXX:replaygain_track_peak'                        '0.622751'

========================== row from database ==========================
                                              'id'  1315920
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1990/013 - Technotronic - Pump Up the Jam.mp3
                                         'working'  None
                                         'bitrate'  143
                                    'duration_sec'  324
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  5823525
                                           'mtime'  1621696128
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1990 013 electronic generic or radio unsorted
                                      'tag_artist'  Technotronic
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Pump Up the Jam
                                             'bpm'  124.621
                                    'search_title'  'jam':4 'pump':1 'the':3 'up':2
                                   'search_artist'  'technotronic':1
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1990':3 'electronic':4 'generic':5 'or':6 'radio':7 'top100':2 'unsorted':8
                                    'search_combo'  '00poprockelectronic':12 '1':11C '1990':14 'billboard':6C 'electronic':15 'generic':16 'jam':4A 'of':10C 'or':17 'pop':8C 'pump':1A 'radio':18 'singles':9C 'technotronic':5B 'the':3A 'top':7C 'top100':13 'unsorted':19 'up':2A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dance', '80s', 'techno', 'electronic', 'eurodance']
                                        'tag_date'  1990
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696128.3205516  (2021-05-22 17:08:48)
                             'size'  5823525