======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '251'
                                          'artist'  '2 Brothers On The 4th Floor'
                                     'text_people'  ''
                                         'release'  'Pump Up The 90s'
                                           'title'  'Never Alone'
                                           '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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'eurodance', 'electronic', 'happy hardcore', '90s']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-eurodance'
                                             'bpm'  '128.089'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pump Up The 90s'
'TBPM' (BPM (beats per minute))                     '128.089'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-eurodance'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Never Alone'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               '2 Brothers On The 4th Floor'
'TPE2' (Band/orchestra/accompaniment)               '2 Brothers On The 4th Floor'
'TRCK' (Track number/Position in set)               '2'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'eurodance', 'electronic', 'happy hardcore', '90s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.456656'

========================== row from database ==========================
                                              'id'  1361081
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/102-2_brothers_on_the_4th_floor-never_alone.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  251
                                           'genre'  electronic-th-ent-eurodance
                                        'filesize'  6026605
                                           'mtime'  1639511338
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 102 2_brothers_on_the_4th_floor never_alone electronic ent eurodance
                                      'tag_artist'  2 Brothers On The 4th Floor
                                     'tag_release'  Pump Up The 90s
                                       'tag_title'  Never Alone
                                             'bpm'  128.089
                                    'search_title'  'alone':2 'never':1
                                   'search_artist'  '2':1 '4th':5 'brothers':2 'floor':6 'on':3 'the':4
                                  'search_release'  '90s':4 'pump':1 'the':3 'up':2
                                     'search_rest'  '00poprockelectronic':1 '102':2 '2':3 '4th':7 'alone':10 'brothers':4 'electronic':11 'ent':12 'eurodance':13 'floor':8 'never':9 'on':5 'the':6
                                    'search_combo'  '00poprockelectronic':13 '102':14 '2':3B,15 '4th':7B,19 '90s':12C 'alone':2A,22 'brothers':4B,16 'electronic':23 'ent':24 'eurodance':25 'floor':8B,20 'never':1A,21 'on':5B,17 'pump':9C 'the':6B,11C,18 'up':10C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', '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-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'eurodance', 'electronic', 'happy hardcore', '90s']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1639511337.615461  (2021-12-14 20:48:57)
                             'size'  6026605