======================== unified (from filesystem) ========================
                                         'bitrate'  '213.337'
                                        'duration'  '258'
                                          'artist'  'Flunk'
                                     'text_people'  ''
                                         'release'  'Morning Star-US RETAIL-(Kriztal) '
                                           'title'  'All My Dreams on Hold'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'downtempo', 'female vocalists', 'trip hop', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '85.023'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Morning Star-US RETAIL-(Kriztal) '
'TBPM' (BPM (beats per minute))                     '85.023'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'All My Dreams on Hold'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Flunk'
'TRCK' (Track number/Position in set)               '5'
'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'                                   ['electronic', 'downtempo', 'female vocalists', 'trip hop', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.39 dB'
'TXXX:replaygain_track_peak'                        '0.423922'

========================== row from database ==========================
                                              'id'  1290228
                                            'path'  /data/Music/Bulk/00poprockelectronic/Flunk/Play America/05-flunk-all_my_dreams_on_hold.mp3
                                         'working'  None
                                         'bitrate'  213
                                    'duration_sec'  258
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  6902525
                                           'mtime'  1636911257
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Play America 05 flunk all_my_dreams_on_hold electronic trip hop downtempo acid jazz
                                      'tag_artist'  Flunk
                                     'tag_release'  Morning Star-US RETAIL-(Kriztal) 
                                       'tag_title'  All My Dreams on Hold
                                             'bpm'  85.023
                                    'search_title'  'all':1 'dreams':3 'hold':5 'my':2 'on':4
                                   'search_artist'  'flunk':1
                                  'search_release'  'kriztal':6 'morning':1 'retail':5 'retailkriztal':7 'star':2 'starus':4 'us':3
                                     'search_rest'  '00poprockelectronic':1 'acid':14 'all':5 'america':3 'downtempo':13 'dreams':7 'electronic':10 'flunk':4 'hold':9 'hop':12 'jazz':15 'my':6 'on':8 'play':2 'trip':11
                                    'search_combo'  '00poprockelectronic':14 'acid':27 'all':1A,18 'america':16 'downtempo':26 'dreams':3A,20 'electronic':23 'flunk':6B,17 'hold':5A,22 'hop':25 'jazz':28 'kriztal':12C 'morning':7C 'my':2A,19 'on':4A,21 'play':15 'retail':11C 'retailkriztal':13C 'star':8C 'starus':10C 'trip':24 'us':9C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'downtempo', 'female vocalists', 'trip hop', 'chillout']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636911257.215052  (2021-11-14 18:34:17)
                             'size'  6902525